Counter-reply to the letter in response to the article A population-based survey of the prevalence and risk factors of chronic obstructive pulmonary disease in Shanxi province (China)

Wang, R; Xu, J; Wang, Y

Wang, R (通讯作者),Shanxi Acad Med Sci, Dept Pulm & Crit Care Med, Shanxi Bethune Hosp, Taiyuan, Shanxi, Peoples R China.

REVISTA CLINICA ESPANOLA, 2022; 222 (4): 254