Guest Editors: Chin-Cheng Chen (New York Proton Center), Dennis Mah (ProCure Proton Therapy Center), Chang Chang (California Proton Therapy Center), Joseph Tung-Chieh Chang (Chang Gung Memorial Hospital), and Nancy Y. Lee (Memorial Sloan-Kettering Cancer Center).

Guest Editors: Pei-Wei Shueng (National Yang Ming Chiao Tung University), Yen-Wen Wu (Far Eastern Memorial Hospital), and Long-Sheng Lu (Taipei Medical University).

Guest Editors: Chen-Hsi Hsieh (School of medicine at National Yang-Ming University; Far Eastern Memorial Hospital, Taiwan), Hsin-Hua Nien (Cathay General Hospital, Taiwan) and Yu-Ming Huang (MacKay Memorial Hospital, Taiwan)

The "Meet the Professor" series features interviews with the global Key Opinion Leaders, providing a window into the new developments, breakthroughs, and achievements in the interviewees’ professional fields, both clinically and academically.

Guest Editors: Alexander V. Louie (Odette Cancer Centre, Sunnybrook Health Sciences Centre, Canada) and Joe Y. Chang (the University of Texas MD Anderson Cancer Center, USA)

Guest Editors: Hiroaki Kumada (University of Tsukuba, Tsukuba, Japan) and Yi-Wei Chen (Taipei Veterans General Hospital, Taiwan)