中国当代医药
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中国当代医药  2021, Vol. 28 Issue (19): 187-190    DOI:
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Analysis of the causes and countermeasures of pneumoconiosis patients lost in follow-up survey
HU Na LU Jian-guo LI Ye XUE Lai-jun▲
Department of Occupational Diseases, Qingyuan Chronic Disease Prevention and Treatment Hospital, Guangdong Province, Qingyuan 511515, China
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