RT Journal Article SR Electronic T1 Unruptured vasa previa with anomalous umbilical cord formation JF Canadian Family Physician JO Can Fam Physician FD The College of Family Physicians of Canada SP 1076 OP 1078 VO 59 IS 10 A1 Prince, Gerry D. YR 2013 UL http://www.cfp.ca/content/59/10/1076.abstract AB