?:authorAffiliation
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[\'Health Statistics Information Center of Health Commission of Gansu Province, Lanzhou, China.\', \'School of Public Health, Lanzhou University, Lanzhou, China.\', \'WHO Collaborating Centre for Guideline Implementation and Knowledge Translation, Lanzhou, China.\', \'Key Laboratory of Evidence Based Medicine and Knowledge Translation of Gansu Province, Lanzhou University, Lanzhou, China.\', \'Health Statistics Information Center of Health Commission of Gansu Province, Lanzhou, China. 1527658556@qq.com.\', \'Institute of Global Health, University of Geneva, Geneva, Switzerland.\', \'Institute of Mathematical Statistics and Actuarial Science, University of Bern, Bern, Switzerland.\', \'School of Public Health, Lanzhou University, Lanzhou, China. chenyaolong@lzu.edu.cn.\', \'WHO Collaborating Centre for Guideline Implementation and Knowledge Translation, Lanzhou, China. chenyaolong@lzu.edu.cn.\', \'Key Laboratory of Evidence Based Medicine and Knowledge Translation of Gansu Province, Lanzhou University, Lanzhou, China. chenyaolong@lzu.edu.cn.\']
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