Author’ contributions
PGG, VM, and JM conducted the Breathing for Life Trial (BLT) pregnancy study; PGG, VM, AC, and JM conducted BLT infant follow-up; PDGB and EDQA performed infant eNO measurement; EP and CRDSS conducted analysis of eNO data; GMCG and EP collated and analyzed air pollution data; EP, CO and WK developed and conducted statistical analyses; EP wrote draft manuscript, prepared figures and tables; all authors edited the final version of the manuscript.