Relationship between Nutritional Status and Severity of Pneumonia in Elderly Patients with Community-acquired Pneumonia 
KANG Yu,FANG Xiangyang,HOU Yuanping,ZHANG Ying,CHEN Xiuli,WANG Xiaojuan
Chinese General Practice . 2018, (28): 3485 -3489 .  DOI: 10.12114/j.issn.1007-9572.2018.28.014