@article{SHEN Yan:259, author = {SHEN Yan, SHI Yu,ZHOU Jian-guo, SHEN Hai-ping.}, title = {Clinical classification of extraction difficulty for embedded multiple teeth in 178 children}, publisher = {China Journal of Oral and Maxillofacial Surgery}, year = {2018}, journal = {China Journal of Oral and Maxillofacial Surgery}, volume = {16}, number = {3}, eid = {259}, numpages = {3}, pages = {259}, keywords = {Children Embedded multiple teeth;Extration difficulty;Classification}, url = {https://www.cjoms.org/EN/abstract/article_6827.shtml}, doi = {10.19438/j.cjoms.2018.03.013} }