Thanner F, Suetterlin M, Kenn W, Dinkel H P, Gassel A M, Dietl J, Mueller T
Department of Obstetrics and Gynecology, University of Wuerzburg, Wuerzburg, Germany.
Acta Obstet Gynecol Scand. 2001 Dec;80(12):1150-1. doi: 10.1034/j.1600-0412.2001.801217.x.