共 6 条
[1]
Chadda Rk, 2002, Tob Induc Dis, V1, P111, DOI 10.1186/1617-9625-1-2-111
[3]
Gupta P C, 2004, Indian J Public Health, V48, P103
[4]
Kumar R, 2005, LUNG INDIA, V22, P68
[5]
Madan Kumar P D, 2006, Indian J Cancer, V43, P127