Deborah B Nelson1, George Macones. 1. Center for Clinical Epidemiology and Biostatistics, Department of Biostatistics and Epidemiology, University of Pennsylvania School of Medicine, Philadelphia, PA, USA. dnelson@cceb.med.upenn.edu
Authors: Yasmin H Neggers; Tonja R Nansel; William W Andrews; Jane R Schwebke; Kai-fun Yu; Robert L Goldenberg; Mark A Klebanoff Journal: J Nutr Date: 2007-09 Impact factor: 4.798