OCs protect users against PID, study shows.
D003267:Contraception; D003270:Contraceptive Agents; D003271:Contraceptive Agents, Female; D003276:Contraceptives, Oral; D004194:Disease; D005193:Family Planning Services; D007239:Infections; D000292:Pelvic Inflammatory Disease; D012102:Reproductive Control Agents
D003270:Contraceptive Agents; D003271:Contraceptive Agents, Female; D003276:Contraceptives, Oral; D012102:Reproductive Control Agents
Contraception; Contraceptive Agents; Contraceptive Agents, Female; Contraceptive Methods--beneficial effects; Contraceptive Methods--indications; Diseases; Family Planning; Infections; Oral Contraceptives--beneficial effects; Oral Contraceptives--indications; Pelvic Infections; Reproductive Control Agents