Massachusetts Medical Society, New England Journal of Medicine, 10(351), p. 978-986, 2004
DOI: 10.1056/nejmoa040963
Lippincott, Williams & Wilkins, Obstetrical & Gynecological Survey, 3(60), p. 155-157, 2005
DOI: 10.1097/01.ogx.0000154421.12257.a7
Elsevier, Year Book of Pathology and Laboratory Medicine, (2006), p. 270-271
DOI: 10.1016/s1077-9108(08)70198-1
Full text: Unavailable