Randomized, placebo-controlled trial.
Abdulmajeed
A
Al Abdukareem
D035081:Editorial Policies; D028744:Ethics Committees, Research; D005260:Female; D006801:Humans; D007231:Infant, Newborn; D007258:Informed Consent / Q000592:standards; D018156:Journalism, Medical / Q000592:standards*; D048949:Labor Pain / Q000628:therapy*; D011247:Pregnancy; D016032:Randomized Controlled Trials as Topic / Q000941:ethics / Q000592:standards*; D036302:Therapeutic Human Experimentation / Q000941:ethics