RT Journal Article SR Electronic T1 Screening for chlamydia and gonorrhea in primary care in populations with low prevalence JF Canadian Medical Association Journal JO CMAJ FD Canadian Medical Association SP E1307 OP E1307 DO 10.1503/cmaj.79560 VO 193 IS 33 A1 Diana Whellams YR 2021 UL http://www.cmaj.ca/content/193/33/E1307.abstract