Urinary polycyclic aromatic hydrocarbon (PAH) metabolite concentrations in three pregnancy cohorts from 7 U.S. study sites.

Masterson EE, Riederer AM, Loftus CT, Wallace ER, Szpiro AA, Simpson CD, Muralidharan R, Trasande L, Barrett ES, Nguyen RHN, Kannan K, Robinson M, Swan S, Mason WA, Bush NR, Sathyanarayana S, LeWinn KZ, Karr CJ