Assistant Professor of Medicine, Dartmouth Medical School

Research Interests:
Dr. Robertson is a Gastroenterologist with research interests both in the epidemiology of colorectal cancer (he is the Clinical Director of the Calcium and Vitamin D Polyp Prevention Study) and the utility of screening and surveillance for this disease. Although colonoscopy is increasingly performed, his research suggests that the degree of cancer prevention afforded may not be as great as suggested by earlier studies. He also recently received a VA Career Development Award to study the utility of fecal occult blood testing following a normal colonoscopy.

Selected Publications:

1. Robertson DJ, Lawrence LB, Shaheen NS, Baron JA, Paskett E, Petrelli NJ, Sandler RS. Quality of Colonoscopy Reporting: A Process Of Care Study. Am J Gastroenterol 2002; 97:2651-2656.


2. Collins JF, Lieberman DA, Durbin TE, Weiss DG and the Veterans Affairs Cooperative Study #380 Group. Accuracy of Screening Fecal Occult Blood on a Single Stool Sample Obtained by Digital Rectal Examination: A Comparison with Recommended Sampling Practice. Ann Intern Med 2005;142:81-85.


3. Robertson DJ, Greenberg ER, Beach M, Sandler RS, Ahnen D et al. Colorectal Cancer in Patients Under Close Colonoscopic Surveillance. Gastroenterology 2005;129:34.


4. Robertson DJ, Burke CA, Schwender B, Wargovich M, Greenberg ER, Sandler RS, Ahnen D, Rothstein R, Mott LA, Baron JA. Histamine Receptor Antagonists and Incident Adenomas. Aliment Pharmacol Ther 2005;22:123-128.


5. Robertson DJ, Sandler RS, Haile R, Tosteson TD, Greenberg ER, Mott LA, Grau M, Baron JA. Fat, Fiber, Meat and Risk of Colorectal Adenomas. Am J Gastroenterol 2005 Dec;100(12):2789-95.