Obstetric Anesthesia
Analgesia for Labor: Obstetric Outcome and Economic Issues
β2-Adrenergic Receptor Genotype and Other Variables that Contribute to Labor Pain and Progress
Reitman E, Conell-Price J, Evansmith J, et al (Columbia Univ, NY) Anesthesiology 114:927-939, 2011§
Evidence Ranking
• B
Expert Rating
• 1