Association of DSM-5 Betel-Quid Use Disorder With Oral Potentially Malignant Disorder in 6 Betel-Quid Endemic Asian Populations by Lee, Chien Hung, Ko, Albert Min Shan, Yang, Frances M., Hung, Chung Chieh, Warnakulasuriya, Saman, Ibrahim, Salah Osman, Zain, R.B., Ko, Ying Chin