Wilson Philippa, Walker Kate F, Gribbin Clare, Thornton James G
Maternity Department, Nottingham City Hospital, Nottingham University Hospitals NHS Trust, UK.
Maternity Department, Nottingham City Hospital, Nottingham University Hospitals NHS Trust, UK.
Eur J Obstet Gynecol Reprod Biol. 2014 Dec;183:205. doi: 10.1016/j.ejogrb.2014.10.046. Epub 2014 Oct 30.