The Pill and the blackboard.
Campbell
Martha
M
School of Public Health, University of California, Berkeley, 94720-7360, USA. mcbell@berkeley.edu
Potts
Malcolm
M
D003278:Contraceptives, Oral, Hormonal; D003906:Developing Countries; D005193:Family Planning Services / Q000193:education*; D005260:Female; D006801:Humans
D003278:Contraceptives, Oral, Hormonal