Elusive denominators and the illusions they create.
Stevens-Simon
Catherine
C
D000293:Adolescent; D003271:Contraceptive Agents, Female / Q000008:administration & dosage*; D005260:Female; D006801:Humans; D017258:Medroxyprogesterone Acetate / Q000008:administration & dosage; D011247:Pregnancy; D011253:Pregnancy in Adolescence / Q000517:prevention & control* / Q000706:statistics & numerical data
D003271:Contraceptive Agents, Female; D017258:Medroxyprogesterone Acetate