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  1. Small Intestinal Bacterial Overgrowth Is Associated with Vasodilatation in Cirrhosis

    Article • April 2020, Prof. Marin Drinov Academic Publishing House

    Dr Andrey Iskrenov Kotzev

  2. Comprehensive Analysis of Adverse Events Associated with Gastric Peroral Endoscopic Myotomy: An International Multicenter Study

    Article • Surgical Endoscopy, April 2020, Springer Science + Business Media

    Dr Andrey Iskrenov Kotzev, Dr Amol Bapaye

  3. Endoscopic submucosal dissection for early gastric cancer in the West: the absolute but not final word

    Article • Gastrointestinal Endoscopy, September 2019, Elsevier

    Dr Andrey Iskrenov Kotzev

  4. 644 GASTRIC PERORAL ENDOSCOPIC MYOTOMY (G-POEM) FOR THE TREATMENT OF REFRACTORY GASTROPARESIS: RESULTS FROM THE FIRST INTERNATIONAL PROSPECTIVE TRIAL

    Article • Gastrointestinal Endoscopy, June 2019, Elsevier

    Dr Andrey Iskrenov Kotzev

  5. Mo1074 COMPREHENSIVE CASE-MATCHED STUDY ON ADVERSE EVENTS ASSOCIATED WITH GASTRIC PER ORAL ENDOSCOPIC MYOTOMY

    Article • Gastrointestinal Endoscopy, June 2019, Elsevier

    Dr Andrey Iskrenov Kotzev, Dr Amol Bapaye

  6. Disturbed Interstitial Pregnancy: A First Case of Successful Treatment Using a Mini-Laparoscopic Approach

    Article • Medicina, May 2019, MDPI AG

    Dr Andrey Iskrenov Kotzev

  7. A promising countertraction method for faster adoption of endoscopic submucosal dissection in a Western setting

    Article • Gastrointestinal Endoscopy, February 2019, Elsevier

    Dr Andrey Iskrenov Kotzev

  8. Unsolved issues of pregnancy in liver cirrhosis

    Article • Terapevticheskii arkhiv, January 2019, MediaMedica

    Dr Andrey Iskrenov Kotzev

  9. 4-Hydroxynonenal (HNE) and hepatic injury related to chronic oxidative stress

    Article • Biotechnology & Biotechnological Equipment, January 2019, Taylor & Francis

    Dr Andrey Iskrenov Kotzev, Professor Dimo Stoyanov Krastev, Assoc.prof. Kameliya Bratoeva

  10. The first case of sigmoidouterine fistula in Crohn’s disease

    Article • Inflammatory Bowel Diseases, November 2018, Oxford University Press (OUP)

    Dr Andrey Iskrenov Kotzev

  11. Esophageal obstruction after variceal ligation.

    Article • La Presse Médicale, October 2018, Elsevier

    Dr Andrey Iskrenov Kotzev

  12. Practical approach for endoscopic resection of colorectal lesions.

    Article • European Journal of Gastroenterology & Hepatology, August 2018, Wolters Kluwer Health

    Dr Andrey Iskrenov Kotzev

  13. How to train endoscopic submucosal dissection (ESD) in USA

    Article • Digestive Endoscopy, July 2018, Wiley

    Dr Andrey Iskrenov Kotzev

  14. Ca 19-9, CEA and CA 72-2 in gastric cancer.

    Article • Gastrointestinal Tumors, April 2018, Karger Publishers

    Dr Andrey Iskrenov Kotzev

  15. Hepatoprotective effect of melatonin via activation of Nrf2 and anti-apoptotic proteins in burn rats

    Article • Oxidants and Antioxidants in Medical Science, January 2018, ScopeMed International Medical Journal Management and Indexing System

    Dr Andrey Iskrenov Kotzev

  16. Expression of p16 in esophageal adenocarcinoma

    Article • Acta Medica Bulgarica, January 2017, De Gruyter

    Dr Andrey Iskrenov Kotzev

  17. Prevention of sporadic colorectal cancer

    Article • memo - Magazine of European Medical Oncology, May 2014, Springer Science + Business Media

    Dr Andrey Iskrenov Kotzev

  18. Expression of apoptotic and proliferative markers in esophageal adenocarcinoma

    Article • Journal of Cancer Therapy, January 2012, Scientific Research Publishing, Inc,

    Dr Andrey Iskrenov Kotzev