title: [Contraceptive efficiency.  Reflections on statistical evaluation and real value].
authors.forename: M A
authors.initials: MA
authors.lastname: Lagroua Weill-halle
mesh_terms: D001208:Asia; D001519:Behavior; D001721:Birth Intervals; D002681:China; D003267:Contraception; D003276:Contraceptives, Oral; D005069:Evaluation Studies as Topic; D005191:Family Characteristics; D005193:Family Planning Services; D005202:Asia, Eastern; D007434:Intrauterine Devices; D009042:Motivation; D011584:Psychology
chemical_list: D003276:Contraceptives, Oral
keywords: Asia; Behavior; Birth Intervals; China; Contraception; Eastern Asia; Evaluation; Family Planning; Family Size; Iud; Motivation; Oral Contraceptives; Psychological Factors; Use-effectiveness