1 Department of Gynecological Oncology, Fujian Maternity and Child Health Hospital College of Clinical Medicine for Obstetrics and Gynecology and Pediatrics, Fujian Medical University, National Key Clinical Specialty Construction Program of Gynecology, Fujian Key Laboratory of Women and Children's Critical Diseases Research, Fuzhou 350001, China; Center for Primary Health Care Research, Lund University, Malmö, Sweden. Electronic address: yi.huan@fjmu.edu.cn.
2 Center for Primary Health Care Research, Lund University, Malmö, Sweden.