Longnecker M, Harbak K, Kissling G, Hoppin J, Eggesbo M, Jusko T, et al. The concentration of bisphenol A in urine is affected by specimen collection, a preservative, and handling. Environ Res. 2013;126:211-4 pubmed publisher
..We found that under the conditions used to collect urine specimens in the epidemiologic study, contamination with BPA occurred, and by two separate mechanisms. ..
Savitz D, Klebanoff M, Wellenius G, Jensen E, Longnecker M. Persistent organochlorines and hypertensive disorders of pregnancy. Environ Res. 2014;132:1-5 pubmed publisher
Longnecker M. Pharmacokinetic variability and the miracle of modern analytical chemistry. Epidemiology. 2006;17:350-1 pubmed
Longnecker M, Gladen B, Cupul Uicab L, Romano Riquer S, Weber J, Chapin R, et al. In utero exposure to the antiandrogen 1,1-dichloro-2,2-bis(p-chlorophenyl)ethylene (DDE) in relation to anogenital distance in male newborns from Chiapas, México. Am J Epidemiol. 2007;165:1015-22 pubmed
..If DDE has important antiandrogenic action in humans, it may be manifest only at higher levels of exposure or via effects on other outcomes...