RT Journal Article SR Electronic T1 The Gender Penalty: Reasons for Differences in Reported Weekly Work Hours Among Male and Female Family Physicians JF The Journal of the American Board of Family Medicine JO J Am Board Fam Med FD American Board of Family Medicine SP 650 OP 652 DO 10.3122/jabfm.2020.05.200384 VO 33 IS 5 A1 Kathryn M. Hart YR 2020 UL http://www.jabfm.org/content/33/5/650.abstract AB