[Contraceptive efficacy].
D001519:Behavior; D003267:Contraception; D003695:Delivery of Health Care; D019049:Developed Countries; D005060:Europe; D016656:Family Planning Policy; D005193:Family Planning Services; D006262:Health; D007390:International Agencies; D009938:Organizations; D010349:Patient Compliance; D011174:Portugal; D011640:Public Policy
Behavior; Contraception; Contraceptive Effectiveness; Delivery Of Health Care; Developed Countries; Europe; Family Planning; Family Planning Policy; Health; International Agencies; Ippf; Organizations; Policy; Population Policy; Portugal; Social Policy; Southern Europe; User Compliance