青岛市北区二年级学生六龄齿健康状况调查分析
张琨,田霞,周栾慧
Analysis of health status of the first permanent molars of students aged 7~9 years old in Qingdao city.
ZHANG Kun,TIAN Xia,ZHOU Luan-hui.
中国儿童保健杂志 . 2016, (10): 1104 -1106 .  DOI: 10.11852/zgetbjzz2016-24-10-28