title: Who uses anal sex for birth control?
authors.affiliation: University of British Columbia, Department of Family Practice, Vancouver, Canada. ellenwiebe@gmail.com
authors.forename: Ellen R
authors.initials: ER
authors.lastname: Wiebe
mesh_terms: D000328:Adult; D002170:Canada; D003267:Contraception / Q000379:methods*; D005260:Female; D006801:Humans; D012725:Sexual Behavior / Q000706:statistics & numerical data*; D011795:Surveys and Questionnaires