PDF(4515 KB)
PDF(4515 KB)
PDF(4515 KB)
适龄儿童第一恒磨牙窝沟封闭防龋效果评价
({{custom_author.role_cn}}), {{javascript:window.custom_author_cn_index++;}}Efficacy evaluation of pit and fissure sealants in the caries prevention of the first permanent molars among school-aged children
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