Analysis of norethindrone in plasma by high-performance liquid chromatography.
Loo
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JC
Brien
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D003267:Contraception; D003270:Contraceptive Agents; D003271:Contraceptive Agents, Female; D003276:Contraceptives, Oral; D005193:Family Planning Services; D009640:Norethindrone; D012106:Research
D003270:Contraceptive Agents; D003271:Contraceptive Agents, Female; D003276:Contraceptives, Oral; D009640:Norethindrone
Clinical Research; Contraception; Contraceptive Agents, Female--analysis; Contraceptive Agents, Progestin; Contraceptive Agents--analysis; Family Planning; Norethindrone--analysis; Oral Contraceptives; Research Methodology