RT Journal Article SR Electronic T1 Medical problems in pregnancy JF Clinical Medicine JO Clin Med FD Royal College of Physicians SP 589 OP 590 DO 10.7861/clinmedicine.17-6-589 VO 17 IS 6 A1 Irina Stoian A1 Bridget MacDonald YR 2017 UL http://www.rcpjournals.org/content/17/6/589.abstract