RT Journal Article SR Electronic T1 Atrial Fibrillation During Flexible Sigmoidoscopy JF The Journal of the American Board of Family Practice JO J Am Board Fam Med FD American Board of Family Medicine SP 73 OP 73 DO 10.3122/jabfm.9.1.73 VO 9 IS 1 A1 Varma, Jay R. YR 1996 UL http://www.jabfm.org/content/9/1/73.1.abstract AB