Variations in Phytoestrogen Content between Different Mill Dates of the Same Diet Produces Significant Differences in the Time of Vaginal Opening in CD-1 Mice and F344 Rats but Not in CD Sprague-Dawley Rats
Julius E. Thigpen, Kenneth D.R. Setchell, Elizabeth Padilla-Banks, Joseph K. Haseman, Hannah E. Saunders, Gordon F. Caviness, Grace E. Kissling, Mary G. Grant, and Diane B. Forsythe
Environ Health Perspect. 2007 December; 115(12): 1717–1726. Published online 2007 September 21. doi: 10.1289/ehp.10165.PMCID: PMC2137112