Oliver Peacock, BMedSci, BMBS, PhD, FRCS

Peer-Reviewed Articles

1. White MG, Damania A, Alshenaifi J, Sahasrabhojane P, Peacock O, Losh J, Wong MC, Lutter-Berkova Z, Chang GJ, Futreal A, Wargo JA, Ajami NJ, Kopetz S, You YN. Young-onset Rectal Cancer: Unique Tumoral Microbiome and Correlation with Response to Neoadjuvant Therapy. Ann Surg. e-Pub 2023. PMID: 37465976.
2. Peacock O, Manisundaram N, Kim Y, Konishi T, Stanietzky N, Vikram R, Bednarski BK, You YN, Chang GJ. Therapeutic lateral pelvic lymph node dissection in rectal cancer: when to dissect? Size is not everything. Br J Surg. e-Pub 2023. PMID: 37150892.
3. Rooney MK, De B, Corrigan K, Smith GL, Taniguchi C, Minsky BD, Ludmir EB, Koay EJ, Das P, Koong AC, Peacock O, Chang G, You YN, Morris VK, Nogueras-González G, Holliday EB. Patient-reported Bowel Function and Bowel-related Quality of Life After Pelvic Radiation for Rectal Adenocarcinoma: The Impact of Radiation Fractionation and Surgical Resection. Clin Colorectal Cancer. e-Pub 2023. PMID: 36878805.
4. Peacock O, Vilar E, Guraieb-Trueba M, Thirumurthi S, Chang GJ, You YN. Clinically Significant Metachronous Colorectal Pathology Detected Among Young-onset Colorectal Cancer Survivors: Implications for Post-resection Surveillance Guidelines. Gastroenterology 163(6):1682-1684.e2, 2022. e-Pub 2022. PMID: 35987446.
5. Wang J, Prabhakaran S, Larach T, Warrier SK, Bednarski BK, Ngan SY, Leong T, Rodriguez-Bigas M, Peacock O, Chang G, Heriot AG, Kong JC. Treatment strategies for locally recurrent rectal cancer. Eur J Surg Oncol 48(11):2292-2298, 2022. e-Pub 2022. PMID: 35637097.
6. Lewis-Lloyd CA, Crooks CJ, West J, Peacock O, Humes DJ. Time Trends in the Incidence Rates of Venous Thromboembolism Following Colorectal Resection by Indication and Operative Technique. Colorectal Dis 24(11):1405-1415, 2022. e-Pub 2022. PMID: 35733416.
7. Peacock O, Manisundaram N, Dibrito SR, Kim Y, Hu CY, Bednarski BK, Konishi T, Stanietzky N, Vikram R, Kaur H, Taggart MW, Dasari A, Holliday EB, You YN, Chang GJ. Magnetic Resonance Imaging Directed Surgical Decision Making for Lateral Pelvic Lymph Node Dissection in Rectal Cancer after Total Neoadjuvant Therapy (TNT). Ann Surg 276(4):654-664, 2022. e-Pub 2022. PMID: 35837891.
8. Khan Z, Rooney MK, Das P, Ludmir EB, Koay EJ, Smith GL, Taniguchi C, Minsky BD, Koong AC, Sawakuchi G, Beddar S, Martin RM, Rodriguez-Bigas M, Peacock O, Chang G, Holliday EB. Intraoperative Radiation After Pelvic Short Course Radiation-Based Total Neoadjuvant Therapy for Patients With Rectal Adenocarcinoma at High Risk for Local Recurrence. Clin Colorectal Cancer 21(3):204-211, 2022. e-Pub 2022. PMID: 35125321.
9. Lewis-Lloyd CA, Humes DJ, West J, Peacock O, Crooks CJ. The Duration and Magnitude of Post-Discharge Venous Thromboembolism Following Colectomy. Ann Surg 276(3):e177-e184, 2022. e-Pub 2022. PMID: 35838409.
10. PelvEx Collaborative. Minimum standards of pelvic exenterative practice: PelvEx Collaborative guideline. Br J Surg. e-Pub 2022. PMID: 36170347.
11. Bhutiani N, Peacock O, Chang GJ. A practical framework for the targeted use of total neoadjuvant therapy for rectal cancer. Cancer 128(11):2064-2072, 2022. e-Pub 2022. PMID: 35377951.
12. Kothari A, White MG,Peacock O, Kaur H, Palmquist SM, You N, Taggart M, Salem U, Overman M, Kopetz S, Chang GJ. Pathological response following neoadjuvant immunotherapy in mismatch repair-deficient/microsatellite instability-high locally advanced, non-metastatic colorectal cancer. Br J Surg 109(6):489-492, 2022. PMID: 35576377.
13. Kothari A, White MG, Peacock O, Kaur H, Palmquist SM, You N, Taggart M, Salem U, Overman M, Kopetz S, Chang GJ. Pathological response following neoadjuvant immunotherapy in mismatch repair-deficient/microsatellite instability-high locally advanced, non-metastatic colorectal cancer. Br J Surg. e-Pub 2022. PMID: 35373260.
14. PelvEx Collaborative. Contemporary Management of Locally Advanced and Recurrent Rectal Cancer: Views from the PelvEx Collaborative. Cancers 14(5):1161, 2022. PMID: 35267469.
15. Banting SP, Waters PS, Peacock O, Narasimhan V, Lynch AC, McCormick JJ, Warrier SK, Heriot AG. Management of primary and metastatic malignant small bowel obstruction, operate or palliate. A systematic review. ANZ J Surg 91(3):282-290, 2021. e-Pub 2020. PMID: 32869479.
16. Waters PS, Flynn J, Larach JT, Fernando D, Peacock O, Foster JD, Flood M, McCormick JJ, Warrier SK, Heriot AG. Fellowship training in robotic colorectal surgery within the current hospital setting: an achievable goal?. ANZ J Surg. e-Pub 2021. PMID: 33719148.
17. Peacock O, Smith N, Waters PS, Park-Yun Cheung F, McCormick JJ, Warrier SK, Wagner T, Heriot AG. Preemptive Femoral-Femoral Crossover Grafting of Artery and Vein Before Pelvic Exenterative Surgery for Locally Advanced and Recurrent Pelvic Malignancy Involving the Aortoiliac Axis. Dis Colon Rectum 64(1):e2-e5, 2021. PMID: 33306540.
18. Peacock O, Yanni F, Kuryba A, Cromwell D, Lockwood S, Anderson I, Vohra RS, NELA Project Team. Failure to rescue patients after emergency laparotomy for large bowel perforation: analysis of the National Emergency Laparotomy Audit (NELA). BJS Open 5(1), 2021. PMID: 33609399.
19. Healy MA Peacock O, Hu CY, Bednarski BK, Tillman MM, Messick C, Kaur H, Chang GJ. High Rate of Positive Circumferential Resection Margin in Colon Cancer: A National Appraisal and Call for Action. Ann Surg. e-Pub 2020. PMID: 33630474.
20. Peacock O, Limvorapitak T, Bednarski BK, Kaur H, Taggart MW, Dasari A, Holliday EB, Minsky BD, You YN, Chang GJ. Robotic lateral pelvic lymph node dissection after chemoradiation for rectal cancer: a Western perspective. Colorectal Dis 22(12):2049-2056, 2020. e-Pub 2020. PMID: 32892473.
21. Smith N, Waters PS, Peacock O, Kong JC, Lynch AC, McCormick JJ, Heriot A, Warrier SK. Abdominoperineal excision in Australasia: clinical outcomes, predictive factors and recent trends of nonrestorative rectal cancer surgery. Colorectal Dis 22(11):1614-1625, 2020. e-Pub 2020. PMID: 32663900.
22. Peacock O, Limvorapitak T, Hu CY, Bednarski BK, Tillman MM, Kaur H, Taggart MW, Dasari A, Holliday EB, You YN, Chang GJ. Robotic rectal cancer surgery: comparative study of the impact of obesity on early outcomes. Br J Surg 107(12):1552-1557, 2020. e-Pub 2020. PMID: 32996597.
23. Narasimhan V, Cheung F, Waters P, Peacock O, Warrier S, Lynch C, Michael M, Ramsay R, Heriot A. Re-do cytoreductive surgery for peritoneal surface malignancy: Is it worthwhile?. Surgeon 18(5):287-294, 2020. e-Pub 2019. PMID: 31848069.
24. Baker EJ, Waters PS, Peacock O, Narasimhan V, Larach T, McCormick J, Heriot AG, Warrier S, Lynch C. Robotic transanal minimally invasive surgery - technical, oncological and patient outcomes from a single institution. Colorectal Dis 22(10):1422-1428, 2020. e-Pub 2020. PMID: 32198787.
25. Peacock O, Chang GJ. Is the learning curve the Achilles heel of surgical innovation? - Arguments against TaTME. Annals of Laparoscopic and Endoscopic Surgery, 2020.
26. Yang Y, Peacock O, Malakorn S, Limvorapitak T, Zafar SN, Chang GJ. Superior Mesenteric Vein-First Approach for Robotic Salvage Surgery with Indocyanine Green Fluorescence Angiography. Ann Surg Oncol 27(9):3500, 2020. e-Pub 2020. PMID: 32144622.
27. Peacock O, Chang GJ. ASO Author Reflections: Superior Mesenteric Vein (SMV): First Approach for Complete Mesocolic Excision. Ann Surg Oncol 27(9):3501-3502, 2020. e-Pub 2020. PMID: 32314155.
28. Dickson EA, Keeler BD, Ng O, Kumar A, Brookes MJ, Acheson AG, IVICA trial group. Preoperative intravenous iron therapy and survival after colorectal cancer surgery: long-term results from the IVICA randomised controlled trial. Colorectal Dis. e-Pub 2020. PMID: 32871616.
29. Nikolic A, Waters PS, Peacock O, Choi CC, Rajkomar A, Heriot AG, Smart P, Warrier S. Hybrid abdominal robotic approach with conventional transanal total mesorectal excision (TaTME) for rectal cancer: feasibility and outcomes from a single institution. J Robot Surg 14(4):633-641, 2020. e-Pub 2019. PMID: 31625075.
30. Smith N, Waters PS, Peacock O, Kong JC, McCormick J, Warrier SK, McNally O, Lynch AC, Heriot AG. Pelvic Exenteration for Anal and Urogenital Squamous Cell Carcinoma: Experience and Outcomes from an Exenteration Unit Over 12 Years. Ann Surg Oncol 27(7):2450-2456, 2020. e-Pub 2020. PMID: 31993856.
31. Peacock O, Smith N, Waters PS, Cheung F, McCormick JJ, Warrier SK, Wagner T, Heriot AG. Outcomes of extended radical resections for locally advanced and recurrent pelvic malignancy involving the aortoiliac axis. Colorectal Dis 22(7):818-823, 2020. e-Pub 2020. PMID: 31961476.
32. Kong JC,Peacock O, Waters PS, Eglinton T, Warrier SK, Wakeman C, Frizelle FA, Heriot AG, McCormick JJ. Predictors of overall survival following extended radical resections for locally advanced and recurrent pelvic malignancies. Langenbecks Arch Surg 405(4):491-502, 2020. e-Pub 2020. PMID: 32533361.
33. Waters PS, Cheung FP, Peacock O,, Heriot AG, Warrier SK, O'Riordain DS, Pillinger S, Lynch AC, Stevenson ARL. Successful patient-oriented surgical outcomes in robotic vs laparoscopic right hemicolectomy for cancer - a systematic review. Colorectal Dis 22(5):488-499, 2020. e-Pub 2019. PMID: 31400185.
34. Wilson K, Waters PS, Peacock O, Heriot AG, Wagner T, Warrier SK. Multivisceral, vascular and nodal resection for recurrent rectal cancer involving the left renal tract, left pelvic side wall and abdominal aorta. ANZ J Surg 90(4):632-634, 2020. e-Pub 2019. PMID: 31155824.
35. Waters PS, Cheung FP, Peacock O, Warrier SK, Heriot AG, O'Riordain DS, Pillinger S, Lynch AC, Stevenson ARL. Reply to Slim et al. Colorectal Dis 22(4):466-467, 2020. e-Pub 2019. PMID: 31742860.
36. Peacock O, Waters PS, Kong JC, Warrier SK, Wakeman C, Eglinton T, Heriot AG, Frizelle FA, McCormick JJ. Complications After Extended Radical Resections for Locally Advanced and Recurrent Pelvic Malignancies: A 25-Year Experience. Ann Surg Oncol 27(2):409-414, 2020. e-Pub 2019. PMID: 31520213.
37. Peacock O, Waters PS, Frizelle FA, McCormick JJ. ASO Author Reflections: Major Morbidity After Extended Radical Resections for Locally Advanced and Recurrent Pelvic Malignancies. Ann Surg Oncol 27(2):415-416, 2020. e-Pub 2019. PMID: 31686345.
38. Peacock O, Waters PS, Kong JC, Warrier SK, Wakeman C, Eglinton T, Murphy DG, Heriot AG, Frizelle FA, McCormick JJ. Complications and 5-year survival after radical resections which include urological organs for locally advanced and recurrent pelvic malignancies: analysis of 646 consecutive cases. Tech Coloproctol 24(2):181-190, 2020. e-Pub 2020. PMID: 31907722.
39. Reinforcement of Closure of Stoma Site (ROCSS) Collaborative and West Midlands Research Collaborative. Prophylactic biological mesh reinforcement versus standard closure of stoma site (ROCSS): a multicentre, randomised controlled trial. Lancet 395(10222):417-426, 2020. PMID: 32035551.
40. Waters PS, Peacock O,, Larach T, Lee JD, McCormick JJ, Chander S, Heriot AG, Warrier SK. Utilization of a Transanal TME Platform to Enable a Distal TME Dissection En Bloc with Presacral Fascia and Pelvic Sidewall with Intraoperative Radiotherapy Delivery in a Locally Advanced Rectal Cancer: Advanced Application of taTME. J Laparoendosc Adv Surg Tech A 30(1):53-57, 2020. e-Pub 2019. PMID: 31721637.
41. Peacock O, Waters PS, Otero de Pablos J, Boussioutas A, Skandarajah A, Simpson JA, Warrier SK, Heriot AG. A systematic review of risk-reducing cancer surgery outcomes for hereditary cancer syndromes. Eur J Surg Oncol 45(12):2241-2250, 2019. e-Pub 2019. PMID: 31262600.
42. Waters PS, Peacock O, Warrier SK, Wakeman C, Eglinton T, Lynch AC, Frizelle FA, Heriot AG, McCormick J. Evolution of pelvic exenteration surgery- resectional trends and survival outcomes over three decades. Eur J Surg Oncol 45(12):2325-2333, 2019. e-Pub 2019. PMID: 31303376.
43. Peacock O, Chang GJ. "Watch and Wait" for complete clinical response after neoadjuvant chemoradiotherapy for rectal cancer. Minerva Chir 74(6):481-495, 2019. e-Pub 2019. PMID: 31580047.
44. Peacock O, Waters PS, Bressel M, Lynch AC, Wakeman C, Eglinton T, Koh CE, Lee PJ, Austin KK, Warrier SK, Solomon MJ, Frizelle FA, Heriot AG. Prognostic factors and patterns of failure after surgery for T4 rectal cancer in the beyond total mesorectal excision era. Br J Surg 106(12):1685-1696, 2019. e-Pub 2019. PMID: 31339561.
45. Baker EJ, Waters PS, Peacock O, McCormick JJ, Heriot AG, Warrier SK. Advanced Application of TaTME Platform For a T4 Anterior Rectal Tumor. Surg Laparosc Endosc Percutan Tech 29(4):e45-e49, 2019. PMID: 31135710.
46. Thomas PW, Blackwell JEM, Herrod PJJ,Peacock O, Singh R, Williams JP, Hurst NG, Speake WJ, Bhalla A, Lund JN. Long-term outcomes of biological mesh repair following extra levator abdominoperineal excision of the rectum: an observational study of 100 patients. Tech Coloproctol 23(8):761-767, 2019. e-Pub 2019. PMID: 31392530.
47. Peacock O, Patel S, Simpson JA, Walter CJ, Humes DJ. A systematic review of population-based studies examining outcomes in primary retroperitoneal sarcoma surgery. Surg Oncol 29:53-63, 2019. e-Pub 2019. PMID: 31196494.
48. Keeler BD, Dickson EA, Simpson JA, Ng O, Padmanabhan H, Brookes MJ, Acheson AG, IVICA Trial Group. The impact of pre-operative intravenous iron on quality of life after colorectal cancer surgery: outcomes from the intravenous iron in colorectal cancer-associated anaemia (IVICA) trial. Anaesthesia 74(6):714-725, 2019. e-Pub 2019. PMID: 30963552.
49. Teoh B, Waters PS,Peacock O,, Smart P, Reid K, Rajkumar A, Heriot AG, Warrier SK. Utilising taTME and robotics to reduce R1 risk in locally advanced rectal cancer with rectovaginal and cervical involvement. Tech Coloproctol 23(4):387-390, 2019. e-Pub 2019. PMID: 30778783.
50. Peacock O, Bassett MG, Kuryba A, Walker K, Davies E, Anderson I, Vohra RS, National Emergency Laparotomy Audit (NELA) Project Team. Thirty-day mortality in patients undergoing laparotomy for small bowel obstruction. Br J Surg 105(8):1006-1013, 2018. e-Pub 2018. PMID: 29603126.
51. Oakland K, Guy R, Uberoi R, Hogg R, Mortensen N, Murphy MF, Jairath V, UK Lower GI Bleeding Collaborative. Acute lower GI bleeding in the UK: patient characteristics, interventions and outcomes in the first nationwide audit. Gut 67(4):654-662, 2018. e-Pub 2017. PMID: 28148540.
52. Vafadar-Isfahani N, Parr C, McMillan LE, Sanner J, Yeo Z, Saddington S, Peacock O, Cruickshanks HA, Meehan RR, Lund JN, Tufarelli C. Decoupling of DNA methylation and activity of intergenic LINE-1 promoters in colorectal cancer. Epigenetics 12(6):465-475, 2017. e-Pub 2017. PMID: 28300471.
53. Keeler BD, Simpson JA, Ng O, Padmanabhan H, Brookes MJ, Acheson AG, IVICA Trial Group. Randomized clinical trial of preoperative oral versus intravenous iron in anaemic patients with colorectal cancer. Br J Surg 104(3):214-221, 2017. e-Pub 2017. PMID: 28092401.
54. Hall SJ, Peacock JD, Cochrane LA, Peacock O, Tierney GM, Tou SI, Lund JN. The bowel cancer awareness campaign 'Be Clear on Cancer': sustained increased pressure on resources and over-accessed by higher social grades with no increase in cancer detected. Colorectal Dis 18(2):195-9, 2016. PMID: 26333198.
55. Bhalla A, Peacock O, Lund JN. Response to: Ileostomy closure in an enhanced recovery setting. Colorectal Dis 17(10):929, 2015. PMID: 26095728.
56. Bhalla A, Peacock O, Tierney GM, Tou S, Hurst NG, Speake WJ, Williams JP, Lund JN. Day-case closure of ileostomy: feasible, safe and efficient. Colorectal Dis 17(9):820-3, 2015. PMID: 25808587.
57. Bhalla A, Peacock O, Lund JN. Impact of the United kingdom national bowel cancer awareness campaign on colorectal services. Dis Colon Rectum 58(6):e393-4, 2015. PMID: 25944440.
58. Jones KI, Amawi F, Bhalla A, Peacock O,, Williams JP, Lund JN. Assessing surgeon stress when operating using heart rate variability and the State Trait Anxiety Inventory: will surgery be the death of us?. Colorectal Dis 17(4):335-41, 2015. PMID: 25406932.
59. Creedon L, Peacock O, Singh R, Awan A. Gastric outlet obstruction secondary to incarcerated pylorus in an inguinal hernia. Ann R Coll Surg Engl 96(5):e26-7, 2014. PMID: 24992409.
60. Peacock O, Simpson JA, Tou SI, Hurst NG, Speake WJ, Tierney GM, Lund JN. Outcomes after biological mesh reconstruction of the pelvic floor following extra-levator abdominoperineal excision of rectum (APER). Tech Coloproctol 18(6):571-7, 2014. e-Pub 2014. PMID: 24435472.
61. Peacock O, Lee AC, Cameron F, Tarbox R, Vafadar-Isfahani N, Tufarelli C, Lund JN. Inflammation and MiR-21 pathways functionally interact to downregulate PDCD4 in colorectal cancer. PLoS One 9(10):e110267, 2014. e-Pub 2014. PMID: 25310697.
62. Gheorghe A, Roberts TE, Pinkney TD, Bartlett DC, Morton D, Calvert M, West Midlands Research Collaborative, ROSSINI Trial Investigators. The cost-effectiveness of wound-edge protection devices compared to standard care in reducing surgical site infection after laparotomy: an economic evaluation alongside the ROSSINI trial. PLoS One 9(4):e95595, 2014. e-Pub 2014. PMID: 24748154.
63. Peacock O, Clayton S, Atkinson F, Tierney GM, Lund JN. 'Be Clear on Cancer': the impact of the UK National Bowel Cancer Awareness Campaign. Colorectal Dis 15(8):963-7, 2013. PMID: 23656572.
64. Pinkney TD, Calvert M, Bartlett DC, Gheorghe A, Redman V, Dowswell G, Hawkins W, Mak T, Youssef H, Richardson C, Hornby S, Magill L, Haslop R, Wilson S, Morton D, West Midlands Research Collaborative, ROSSINI Trial Investigators. Impact of wound edge protection devices on surgical site infection after laparotomy: multicentre randomised controlled trial (ROSSINI Trial). BMJ 347:f4305, 2013. e-Pub 2013. PMID: 23903454.
65. Watts ES, Peacock O, Gupta A, Speake WJ, Lund JN. Anyone for TAMIS?. Tech Coloproctol 17(2):253-5, 2013. e-Pub 2012. PMID: 22350171.
66. Peacock O, Bhalla A, Simpson JA, Gold S, Hurst NG, Speake WJ, Tierney GM, Lund JN. Twenty-three-hour stay loop ileostomy closures: a pilot study. Tech Coloproctol 17(1):45-9, 2013. e-Pub 2012. PMID: 22936588.
67. Peacock O, Watts E, Foreman D, Lund JN, Tierney GM. Evaluation of teaching methods for students on hernias: an observational study. ANZ J Surg 83(1-2):11-4, 2013. e-Pub 2012. PMID: 23013104.
68. Peacock O, Watts ES, Hanna N, Kerr K, Goddard AF, Lund JN. Inappropriate use of the faecal occult blood test outside of the National Health Service colorectal cancer screening programme. Eur J Gastroenterol Hepatol 24(11):1270-5, 2012. PMID: 22872076.
69. Peacock O, Lee AC, Larvin M, Tufarelli C, Lund JN. MicroRNAs: relevant tools for a colorectal surgeon?. World J Surg 36(8):1881-92, 2012. PMID: 22526047.
70. Peacock O, Singh R, Cole A, Speake W. The 'cut and push' technique: is it really safe?. BMJ Case Rep 2012, 2012. e-Pub 2012. PMID: 22847571.
71. Watts E, Peacock O, Liyanage S, Elsey E, Lund J. Presentation skills amongst surgical trainees at a national conference: an observational study. JRSM Short Rep 3(5):30, 2012. e-Pub 2012. PMID: 22666527.
72. Peacock O, Pandya H, Sharp T, Hurst NG, Speake WJ, Tierney GM, Lund JN. Biological mesh reconstruction of perineal wounds following enhanced abdominoperineal excision of rectum (APER). Int J Colorectal Dis 27(4):475-82, 2012. e-Pub 2011. PMID: 22006494.
73. Peacock O, Law CI, Collins PW, Speake WJ, Lund JN, Tierney GM. Closure of loop ileostomy: potentially a daycase procedure?. Tech Coloproctol 15(4):431-7, 2011. e-Pub 2011. PMID: 22033543.
74. Bhatti I, Peacock O, Lloyd G, Larvin M, Hall RI. Preoperative hematologic markers as independent predictors of prognosis in resected pancreatic ductal adenocarcinoma: neutrophil-lymphocyte versus platelet-lymphocyte ratio. Am J Surg 200(2):197-203, 2010. e-Pub 2010. PMID: 20122680.
75. Bhatti I, Peacock O, Awan AK, Semeraro D, Larvin M, Hall RI. Lymph node ratio versus number of affected lymph nodes as predictors of survival for resected pancreatic adenocarcinoma. World J Surg 34(4):768-75, 2010. PMID: 20052471.
76. Peacock O, Speake W, Shaw A, Goddard A. Clostridium difficile enteritis in a patient after total proctocolectomy. BMJ Case Rep 2009, 2009. e-Pub 2009. PMID: 21686438.
77. Shaw AG, Peacock O, Lund JN, Tierney GM, Larvin M, Speake W. Large bowel obstruction due to sesame seed bezoar: a case report. J Med Case Rep 1:159, 2007. e-Pub 2007. PMID: 18047637.