Subject
Maternity and Midwifery,Obstetrics and Gynecology
Reference4 articles.
1. Nitrous oxide for relief of labor pain: A systematic review;Rosen MA.;Am J Obstet Gynecol,2002
2. The nature and management of labor pain: Part II. Pharmacologic pain relief;Leeman L;Am Fam Physician,2003
3. Labor pain management in the United States: Understanding patterns and the issue of choice
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19 articles.
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