TY - JOUR T1 - Anesthesiologists provide excellent value in colonoscopy JF - Canadian Medical Association Journal JO - CMAJ SP - E749 LP - E750 DO - 10.1503/cmaj.69318 VL - 190 IS - 24 AU - Douglas B. DuVal Y1 - 2018/06/18 UR - http://www.cmaj.ca/content/190/24/E749.abstract N2 - ER -