title: Family planning service delivery research: a call to focus on the dynamics of contraceptive use.
authors.affiliation: Family Planning Council, Philadelphia, USA. linda@familyplanning.org
authors.forename: Linda
authors.initials: L
authors.lastname: Hock-Long
authors.forename: Paul G
authors.initials: PG
authors.lastname: Whittaker
authors.forename: Roberta
authors.initials: R
authors.lastname: Herceg-Baron
mesh_terms: D000554:Ambulatory Care Facilities; D003267:Contraception / Q000706:statistics & numerical data*; D005260:Female; D006302:Health Services Research; D006801:Humans; D008297:Male; D008962:Models, Theoretical