RT Journal Article SR Electronic T1 Women who receive continuous support during labour have reduced risk of caesarean, instrumental delivery or need for analgesia compared to usual care JF Evidence Based Nursing JO Evid Based Nurs FD BMJ Publishing Group Ltd and RCN Publishing Company Ltd SP 40 OP 41 DO 10.1136/ebn.2011.100194 VO 16 IS 2 A1 McDonald, Susan YR 2013 UL http://ebn.bmj.com/content/16/2/40.abstract AB