Journal of Oral Science Research
Retrospective Study on Ectopic Eruption of First Permanent Molars of School-age Children in Qingdao
ZHANG Qian, WANG Wenru, ZHAO Xia
Journal of Oral Science Research . 2023, (10): 898 -902 .  DOI: 10.13701/j.cnki.kqyxyj.2023.10.009