Dr. William W. M. is doctor of Dental Medicine at School of Dental Medicine in University of Pennsylvania. He is also the emeritus trustee for this university.

He is the honorary associate professor at University of Pennsylvania-School of Dental Medicine and The University of Hong Kong Faculty of Dentistry. He is also the honorary professor at the University of Sichuan West China School of Stomatology, honorary council member at Chinese Stomatological Association and Vice Chair for the Education Committee at the FDI World Dental Federation.

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