[1] Shanghai Jiaotong University School of Medicine,School of Public Health
[2] Tongji University School of Medicine,Department of General Practice, Yangpu Hospital
[3] Shanghai General Practice and Community Health Development Research Center,Academic Department of General Practice
[4] Tongji University School of Medicine,Department of Health Policy and Management, Primary Care Policy Center
[5] Johns Hopkins University,undefined
[6] Shanghai Jing ‘an District Jiangning Road Community Health Service Center,undefined