Maternal exposure to urinary polycyclic aromatic hydrocarbons (PAH) in pregnancy and childhood asthma in a pooled multi-cohort study.

Loftus CT, Szpiro AA, Workman T, Wallace ER, Hazlehurst MF, Day DB, Ni Y, Carroll KN, Adgent MA, Moore PE, Barrett ES, Nguyen RHN, Kannan K, Robinson M, Masterson EE, Tylavsky FA, Bush NR, LeWinn KZ, Sathyanarayana S, Karr CJ