?:authorAffiliation
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[\'Department of Health Management, Heze Medical College, Heze, China.\', \'Department of Elderly Care, Affiliated Hospital of Heze Medical College, Heze, China.\', \'School of Basic Medical Sciences, Shandong University, Jinan, China.\', \'School of Nursing, Peking University, Beijing, China.\', \'Department of Elderly Care, The Second Hospital of Shandong University, Jinan, China.\']
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