(Q39745912)
Statements
A multicentric study on epidemiology of chronic obstructive pulmonary disease and its relationship with tobacco smoking and environmental tobacco smoke exposure (English)
S K Jindal
A N Aggarwal
K Chaudhry
S K Chhabra
G A D'Souza
D Gupta
S K Katiyar
R Kumar
B Shah
V K Vijayan
Asthma Epidemiology Study Group
1 January 2006