成都地区青少年下颌牙弓后段可利用间隙的预测研究
王军,赵志河,刘楚峰,罗颂椒
A Pilot Study on Changes of Posterior Available Spaces in Mandible Dentitions for Adolescents between the Ages of 11 and 20 Years in Chengdu Area
WANGJun,ZHAO Zhihe,LIUChufeng,et al.
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