(Q81822762)
Statements
[Study on the prevalence rate of chronic obstructive pulmonary disease in northern part of Guangdong province] (English)
Xiao-ping Wang
Yu-min Zhou
Xiang-yi Zeng
Sheng-ming Liu
Rong Qiu
Jun-fen Xie
Jin-ping Zheng
Jia-chun Lü
Nan-shan Zhong