RT Journal Article SR Electronic T1 Pregnancy within 8 months of a previous birth was associated with an increased rate of preterm birth JF Evidence Based Nursing JO Evid Based Nurs FD BMJ Publishing Group Ltd and RCN Publishing Company Ltd SP 122 OP 122 DO 10.1136/ebn.1.4.122 VO 1 IS 4 YR 1998 UL http://ebn.bmj.com/content/1/4/122.abstract AB