In search of the perfect pill: no breakthrough yet.
Granger
W E
WE
D000569:Americas; D002170:Canada; D003267:Contraception; D003276:Contraceptives, Oral; D019049:Developed Countries; D004467:Economics; D005069:Evaluation Studies as Topic; D005193:Family Planning Services; D008389:Marketing of Health Services; D009656:North America; D012106:Research; D013672:Technology
D003276:Contraceptives, Oral
Americas; Canada; Contraception; Contraceptive Effectiveness; Contraceptive Methods; Developed Countries; Economic Factors; Family Planning; Marketing; North America; Northern America; Oral Contraceptives; Research And Development; Technology; Use-effectiveness