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Abstract
Entities: Chemical Disease
Mesh： See more » Analgesia, Obstetrical/methodsAnalgesics, Non-Narcotic/administration & dosageFemaleHumansLabor Pain/drug therapyLabor, Obstetric/drug effectsNitrous Oxide/administration & dosagePain MeasurementPregnancySocieties, NursingUnited States
Substances： See more » Analgesics, Non-NarcoticNitrous Oxide
Year: 2010 PMID： 20437663 DOI： 10.1016/j.jmwh.2010.03.003
Source DB: PubMed Journal: J Midwifery Womens Health ISSN： 1526-9523 Impact factor: 2.388