Zhang Mingyu, Litonjua Augusto A, Mueller Noel T
Dept of Epidemiology, Johns Hopkins Bloomberg School of Public Health, Baltimore, MD, USA.
Welch Center for Prevention, Epidemiology and Clinical Research, Johns Hopkins University, Baltimore, MD, USA.
Eur Respir J. 2018 Jul 4;52(1). doi: 10.1183/13993003.01007-2018. Print 2018 Jul.