Level of Clinical Preventive Services Delivered by General Practitioners in Outpatient Primary Care Consultations:a Direct Observational Study 
ZHOU Mengping1,KUANG Li,LUO Zhuojun,LIANG Cuiying,LI Lina,YANG Siman,ZHONG Chenwen
Chinese General Practice . 2021, (13): 1616 -1620 .  DOI: 10.12114/j.issn.1007-9572.2021.00.146