title: Statistical analysis of total labor pain using the visual analog scale and application to studies of analgesic effectiveness during childbirth.
authors.affiliation: Department of Preventive Medicine, University of Iowa, Iowa City 52242, USA.
authors.forename: E
authors.initials: E
authors.lastname: Ludington
authors.forename: F
authors.initials: F
authors.lastname: Dexter
mesh_terms: D016362:Analgesia, Obstetrical / Q000706:statistics & numerical data*; D002986:Clinical Trials as Topic / Q000706:statistics & numerical data*; D005260:Female; D006801:Humans; D007743:Labor, Obstetric / Q000502:physiology*; D010147:Pain Measurement / Q000706:statistics & numerical data*; D011247:Pregnancy; D012107:Research Design / Q000706:statistics & numerical data*