Effect of supply source on oral contraceptive use in Mexico.
D000293:Adolescent; D000328:Adult; D003268:Contraception Behavior; D003276:Contraceptives, Oral / Q000008:administration & dosage*; D003906:Developing Countries; D005260:Female; D006801:Humans; D008800:Mexico; D008875:Middle Aged; D010353:Patient Education as Topic; D012017:Referral and Consultation
D003276:Contraceptives, Oral