The nature and management of labor pain: executive summary.
Caton D, Corry MP, Frigoletto FD, Hopkins DP, Lieberman E, Mayberry L, Rooks JP, Rosenfield A, Sakala C, Simkin P, Young D.
Caton D, et al.
Am J Obstet Gynecol. 2002 May;186(5S):S1-15. doi: 10.1016/S0002-9378(02)70178-6.
Am J Obstet Gynecol. 2002.
PMID: 12011869
Review.