DM Huang, H.Tan, Z.Huang, XD Zhou. Root and canal systems of Chinese maxillary first permanent molars (Oral Presentations) . China-Japan Medical Conference 2002. Program Book : 137.
Wang Y, Zheng QH, Zhou XD, Tang L, Wang Q, Zheng GN, Huang DM. Evaluation of the root and canal morphology of mandibular first permanent molars in a western Chinese population by cone-beam computed tomography. J Endod. 2010; 36(11): 1786-9.
Zheng Q, Zhang L.Zhou X, Wang Q, Wang Y, Tang L, Song F, Huang D. C-shaped root canal system in mandibular second molars in a Chinese population evaluated by cone-beam computed tomography. Int Endod J. 2011; 44(9): 857-62.