APA

Kang J., Yao W., Cai B., Chen P., Ling X. & Shang H. (2016). Current situation of asthma-COPD overlap syndrome (ACOS) in Chinese patients older than 40 years with airflow limitation: rationale and design for a multicenter, cross-sectional trial (study protocol). : Journal of thoracic disease.

Chicago

Kang Jian, Yao Wanzhen, Cai Baiqiang, Chen Ping, Ling Xia and Shang Hongyan. 2016. Current situation of asthma-COPD overlap syndrome (ACOS) in Chinese patients older than 40 years with airflow limitation: rationale and design for a multicenter, cross-sectional trial (study protocol). : Journal of thoracic disease.

Harvard

Kang J., Yao W., Cai B., Chen P., Ling X. and Shang H. (2016). Current situation of asthma-COPD overlap syndrome (ACOS) in Chinese patients older than 40 years with airflow limitation: rationale and design for a multicenter, cross-sectional trial (study protocol). : Journal of thoracic disease.

MLA

Kang Jian, Yao Wanzhen, Cai Baiqiang, Chen Ping, Ling Xia and Shang Hongyan. Current situation of asthma-COPD overlap syndrome (ACOS) in Chinese patients older than 40 years with airflow limitation: rationale and design for a multicenter, cross-sectional trial (study protocol). : Journal of thoracic disease. 2016.