F. E. Speizer, D. W. Dockery, A. Spiro, J. H. Ware, B. G. Ferris,
Passive smoking, gas cooking, and respiratory health of children living in six cities. The American review of respiratory disease. ,vol. 129, pp. 366- 374 ,(2015) ,
10.1164/ARRD.1984.129.3.366