Bateman B T, Gagne J J
Division of Pharmacoepidemiology and Pharmacoeconomics, Department of Medicine, Brigham and Women's Hospital and Harvard Medical School, Boston, MA, USA.
Department of Anesthesia, Critical Care and Pain Medicine, Massachusetts General Hospital, Boston, MA, USA.
BJOG. 2015 Dec;122(13):1756. doi: 10.1111/1471-0528.13297. Epub 2015 Feb 2.