RT Journal Article SR Electronic T1 Warm water bathing did not reduce use of pharmacological analgesia during the first stage of labour JF Evidence Based Medicine JO Evid Based Med FD BMJ Publishing Group Ltd SP 177 OP 177 DO 10.1136/ebm.6.6.177 VO 6 IS 6 YR 2001 UL http://ebm.bmj.com/content/6/6/177.abstract AB