title: Correction: Inducible Nitric Oxide Synthase Promoter Haplotypes and Residential Traffic-Related Air Pollution Jointly Influence Exhaled Nitric Oxide Level in Children.
abstract: [This corrects the article DOI: 10.1371/journal.pone.0145363.].
authors.forename: Muhammad T
authors.initials: MT
authors.lastname: Salam
authors.forename: Pi-Chu
authors.initials: PC
authors.lastname: Lin
authors.forename: Sandrah P
authors.initials: SP
authors.lastname: Eckel
authors.forename: W James
authors.initials: WJ
authors.lastname: Gauderman
authors.forename: Frank D
authors.initials: FD
authors.lastname: Gilliland