RT Journal Article SR Electronic T1 Prenatal Care JF The Journal of the American Board of Family Practice JO J Am Board Fam Med FD American Board of Family Medicine SP 228 OP 229 DO 10.3122/jabfm.3.3.228 VO 3 IS 3 A1 Jack, Brian W. A1 Culpepper, Larry YR 1990 UL http://www.jabfm.org/content/3/3/228.abstract AB