RT Journal Article SR Electronic T1 Flexible Sigmoidoscopy–Reply–I JF The Journal of the American Board of Family Practice JO J Am Board Fam Med FD American Board of Family Medicine SP 69 OP 70 DO 10.3122/jabfm.2.1.69b VO 2 IS 1 A1 Hocutt, John E. A1 Hainer, Barry L. A1 Jackson, Max G. YR 1989 UL http://www.jabfm.org/content/2/1/69.2.abstract AB