宁夏回族自治区455家企业职业卫生现状调查
王媚琳, 杨文海, 马丽霞, 耿敬东
Investigation on occupational health status of 455 enterprises in Ningxia Hui Autonomous Region
WANG Meilin, YANG Wenhai, MA Lixia, GENG Jingdong
职业与健康 . 2023, (17): 2422 -2425 .