Medical Advisors

Bernard Levin, M.D., FACP Professor Emeritus University of Texas M.D. Anderson Cancer Center icon-plus-red

Dr. Levin earned his medical degree from the University of the Witwatersrand Medical School in Johannesburg, South Africa and immigrated to the USA after completion of internships in medicine and surgery. Following an internal medicine residency and a post-doctoral laboratory fellowship, he completed his training in gastroenterology at the University of Chicago. He held academic appointments in the Department of Medicine at the University of Chicago from 1972 until 1984, when he joined the faculty at the University of Texas M. D. Anderson Cancer Center as Professor of Medicine. He served as Chair of the Department of Gastrointestinal Medical Oncology and Digestive Diseases until 1994 when he was appointed as the founding Vice President and Division Head of Cancer Prevention and Population Sciences .He retired from MD Anderson Cancer Center in November 2007 and was appointed as Professor Emeritus.

He served as Chair of the American Cancer Society’s National Advisory Task Force on Colorectal Cancer until October 2008 and was founding co- chair of the National Colorectal Cancer Roundtable from 1998-2005. Dr. Levin served as President of the International Society of Gastrointestinal Carcinogenesis from 2005-2006. From 2007-2011 he served as the founding Chair of the World Gastroenterology Organization Foundation whose mission is to raise funds for the training of gastroenterologists in low resource countries. He was a co-editor of the textbook  “Gastrointestinal Oncology” first published in 2002 with a second edition in 2008. He was lead editor of the “American Cancer Society’s Complete Guide to Colorectal Cancer” published in 2005.   He was co-editor of the “World Cancer Report” published by IARC/WHO in December 2008. He currently serves on the editorial board of the Journal of the National Cancer Institute and on the New York City Colorectal Cancer Control Coalition (C5). He has published over 200 papers and books. Honors include awards from the American Cancer Society, American Society of Preventive Oncology, Gastroenterological Society of Australia, American-Italian Cancer Foundation, World Gastroenterological Organization and University of Texas M.D.Anderson Cancer Center.

His research interests include dietary factors and chemoprevention of colorectal neoplasia, molecular markers for detection of colorectal cancer and better methods for enhancing public awareness of colorectal cancer prevention.

He has lived in New York City since 2008.

Dr. Douglas J. Robertson, MD, MPH icon-plus-red

Dr. Douglas Robertson is a Professor of Medicine at the Geisel School of Medicine at Dartmouth, where he is a Gastroenterologist with research interests both in the epidemiology of colorectal cancer and the utility of screening and surveillance for colorectal cancer. He has used large data sets to understand the associations of factors (like drugs and diet) on the development of colorectal neoplasia. He also has studied the effectiveness of colonoscopy in the prevention of colorectal cancer in those with a prior history of neoplasia.

Dr. Robertson is also the Chief of Gastroenterology at the VA Medical Center in White River Junction, VT. He is a past recipient of a VA HSR&D Career Development Award and has served as the Clinical Director of the Polyp Prevention Study Group that has performed large trials examining aspirin, folate, calcium and Vitamin D on the prevention of polyps. Currently he is the National Co-Chair of VA Cooperative Study 577 CONFIRM trial. This randomized trial will directly compare up front screening colonoscopy to a strategy of annual stool testing with FIT for the prevention of colorectal cancer mortality in 50,000 US Veterans.

Dr. Robertson is a prior Associate Editor for the journal Gastroenterology and currently serves as a Special Section Editor for that journal.  In addition, he is a member of the United States Multi-Society Task Force for Colorectal Cancer, which was responsible for a 2017 update to the clinical guidelines for colorectal cancer screening in the US. This group comprises representatives of the American College of Gastroenterology, American Gastroenterological Association, and American Society for Gastrointestinal Endoscopy.


Dr. Franklin G. Berger, Director, Center for Colon Cancer Research, University of South Carolina icon-plus-red

Dr. Berger earned a BA in Biology from the State University of NY at Buffalo in 1969, and a PhD in Biochemistry from Purdue University in 1974. Following a short postdoctoral stint at Cornell University, he accepted a position at Roswell Park Memorial Institute, where he began his career in cancer research. He moved to the University of South Carolina’s Department of Biological Sciences in 1986, and is now George H. Bunch Sr. Professor there. He was Chair of that department from 1996 until 2002, during which time he founded USC’s Center for Colon Cancer Research, an interdisciplinary research center involving over 30 scientists carrying out basic research related to the diagnosis, prevention, and treatment of colorectal cancer. Dr. Berger’s research interests have focused on understanding and overcoming tumor cell resistance to chemotherapy. His work has been supported by over $30 million in grants, primarily from the National Institutes of Health, and has resulted in ~120 articles in peer-reviewed scientific journals. He has trained over two dozen graduate students and postdoctoral fellows in his laboratory, most of whom have gone on to careers in scientific research and education. Over the years, he has taught many courses at USC, spanning the range from Freshman Biology to an advanced topics course on Cancer Biology.

In addition to doing research, Dr. Berger is actively engaged in community outreach focused on colorectal awareness and screening, particularly within medically underserved and uninsured populations. He has led efforts to provide screening services to underserved individuals throughout South Carolina, utilizing funding from federal and state agencies as well as private foundations. He has formed partnerships with over 100 Federally-Qualified Health Centers and Free Medical Clinics, 70 Board-CertifiedGastroenterologists, and numerous health care organizations, all of which have been crucial in this endeavor.

Dr. Berger’s awards include the SC Governor’s Award in Science (2005), the Distinguished Service Award from the South Carolina Gastroenterology Association (2009), a Laurel Award for Cancer Prevention from the Prevent Cancer Foundation (2012), and the Breakthrough Leadership in Research Award from the University of South Carolina (2013). He was elected Fellow of the American Association for the Advancement of Science in 2010.

Dr. Robert J. Bailey, MD & Clinical Professor of Medicine icon-plus-red

Dr. Robert J. Bailey is a gastroenterologist and Clinical Professor of Medicine at the University of Alberta. A graduate of the University of Ottawa in Ottawa, Ontario, Canada, he finished his internal medicine specialty training at the University of Alberta.  Dr. Bailey then became the first fellow of the University of Alberta Gastroenterology training program.  Dr. Bailey was the recipient of the first Canadian Liver Foundation Fellowship, which provided support for hepatology training with Dr. Roger Williams at the King’s College London.

Dr. Bailey has been on the executive level of numerous medical societies and committees, including President of the Alberta Internist Society, Treasurer of the Canadian Association of Gastroenterology (CAG), President of SIED (The Pan-American Endoscopy Society), Treasurer of the Canadian Association of Study of Liver Disease (CASL), President of the Medical Staff of the Royal Alexandra Hospital, Edmonton. Treasurer of World Endoscopy Organization, Endoscopy Chair for the 2005 World Congress of Gastroenterology, Steering Committee for the World Congress of Gastroenterology meeting in Shanghai 2013, and World Endoscopy Congress in India 2017, Alberta Society Gastroenterology (ASG) Financial Chair and Steering Committee of the Alberta Digestive Disease Summit (ADDS).  Dr. Bailey also is currently the Medical Director for Gastrointestinal Research and Liver Disease Group. 

Dr. Bailey maintains a varied hepatology, gastroenterology and endoscopy practice in Edmonton, Alberta.  He is active in teaching, research and the delivery of clinical care.

Dr. Bo Jiang, MD & Professor, Tsinghua University Clinical Medical College icon-plus-red

Dr. Bo Jiang is Professor of the clinical medical college, Tsinghua University. He is also Director of the department of internal medicine, Beijing Tsinghua Changgung Hospital and chief of the Digestive Disease Center. Dr. Jiang is the medical prize winner of the Ho Leung Ho Lee Foundation in 2015. He is a member of the ninth and tenth standing committee of Chinese Society of Gastroenterology, Chinese Medical Association, and the tenth vice secretary and vice team leader of collaborative group of Micro-ecology. Former vice chairman of Chinese society of digestive endoscopology, Chinese Medical Association, Dr. Jiang is also associate editor of three academic journals such as the Chinese Journal of Digestive Endoscopy.

Dr. Jiang's research interest involves early diagnosis of colorectal cancer, micro-ecosystem in the gastrointestinal tract and intestinal mucosal barrier, inflammatory bowel disease and functional gastrointestinal disease. He is experienced in endoscopic diagnosis of early GI cancer or precancerous lesions. Dr. Jiang was responsible for promoting chromoendoscopy and magnifying endoscopy as well as one-man method of colonoscopy in China to improve the diagnostic level of early GI cancer. Chief editor of the planned undergraduate textbook Internal Medicine and the reference book Gastroenterology, Dr. Jiang has published over 100 SCI articles and have six national patents of invention and 14 innovation patents. He is the second prize winner of the National Scientific and Technological Progress Award in 2003 and first prize winner of Guangdong Scientific and Technological Progress Award in 2010 and 2014 for the great contribution in the research of early diagnosis for colorectal cancer.