Integrating the temporal dimension in longitudinal mixed methods research: key methodological considerations for design and implementation
1Clinical Epidemiology Research Center, Peking University Third Hospital, Beijing 100191 China
2School of Nursing, Peking University
3Department of Social Medicine and Health Education, School of Public Health, Peking University
4Division of Innovation, Entrepreneurship and Public Policy, The Hong Kong University of Science and Technology (Guangzhou)
5Beijing Aerospace General Hospital
6Key Laboratory of Epidemiology of Major Diseases(Peking University), Ministry of Education
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