RT Journal Article SR Electronic T1 At 15–20 weeks of pregnancy, various modifiable factors are associated with increased likelihood of a subsequent uncomplicated pregnancy JF Evidence Based Nursing JO Evid Based Nurs FD BMJ Publishing Group Ltd and RCN Publishing Company Ltd SP 25 OP 25 DO 10.1136/eb-2013-101707 VO 18 IS 1 A1 Frederik J R Hermans A1 Ewoud Schuit YR 2015 UL http://ebn.bmj.com/content/18/1/25.abstract AB