Wing-Keen Yap, MD, is an Attending Specialist and Assistant Professor at the Proton and Radiation Therapy Center of Linkou Chang Gung Memorial Hospital in Taiwan. He earned his MD from National Taiwan University (2006–2013), with internships at Memorial Sloan Kettering Cancer Center (2012) and National Taiwan University Hospital (2012–2013). His professional journey includes serving as a Post-graduate Doctor at FarEast Memorial Hospital (2013–2014), Radiation Oncology Resident at Chang Gung Memorial Hospital (2014–2018), Attending Doctor (2018–present), Clinical Lecturer (2020–2024), and Assistant Professor (2024–present). Yap has authored 17 SCI publications (h-index 10). Notable works include: Prognostic Value of Lymph Node-to-Primary Tumor SUV Ratio in Hypopharyngeal Cancer (Clin Nucl Med, 2025). Upfront Surgery vs. Chemoradiotherapy in Hypopharyngeal Cancer: Meta-Analysis (J Otolaryngol Head Neck Surg, 2024). Nomogram for Survival in Metastatic Lung Cancer (JAMA Netw Open, 2018). Predictive FDG-PET in Esophageal Cancer (Eur J Nucl Med Mol Imaging, 2018). He is a member of the Taiwan Medical Association (2013–present) and Taiwan Society for Therapeutic Radiology and Oncology (2018–present).