Risk Factors of Hospital-acquired Pneumonia in Patients with Mental Disorders:a Nested Case-control Study 
HAN Jingjing,WU Yu,WANG Gaohua,WANG Jianmiao
Chinese General Practice . 2021, (29): 3729 -3733 .  DOI: 10.12114/j.issn.1007-9572.2021.00.581