Ho-Hoi LUK ; Po-May CHAN ; Fong-Fong LAM ; Kit-Yu LAU ; Sze-Yee CHIU ; Yuet-Ling FUNG ; Janet PANG
Chinese Medical Journal 2006;119(19):1669-1672
Adult ; Aged ; Female ; Humans ; Male ; Middle Aged ; Nebulizers and Vaporizers ; Patient Education as Topic ; Pulmonary Disease, Chronic Obstructive ; drug therapy ; Sex Factors ; Smoking