Exposure assessment for endocrine disruptors: some considerations in the design of studies.
Carol Rice, Linda S Birnbaum, James Cogliano, Kathryn Mahaffey, Larry Needham, Walter J Rogan, and Frederick S vom Saal
Environ Health Perspect. 2003 October; 111(13): 1683–1690. PMCID: PMC1241694