Bi-cycle and tri-cycle pills.
D003267:Contraception; D003276:Contraceptives, Oral; D005060:Europe; D005193:Family Planning Services; D008598:Menstruation; D012098:Reproduction; D012606:Scotland; D006113:United Kingdom
D003276:Contraceptives, Oral
Contraception; Contraceptive Methods; Europe; Family Planning; Menstruation; Oral Contraceptives; Reproduction; Scotland; United Kingdom; Western Europe