Timing is everything: the pendulum swings on.
Chassard
Dominique
D
Allaouchiche
Bernard
B
Boselli
Emmanuel
E
D016362:Analgesia, Obstetrical; D000701:Analgesics, Opioid / Q000008:administration & dosage*; D002909:Chronobiology Phenomena; D005260:Female; D005283:Fentanyl / Q000008:administration & dosage*; D006801:Humans; D011247:Pregnancy; D013997:Time Factors
D000701:Analgesics, Opioid; D005283:Fentanyl