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Office
101 The City Dr S
Orange, CA 92868Phone+1 714-880-7812
Education & Training
University of California (San Francisco)Residency, Radiation Oncology, 2003 - 2006
Yale School of MedicineClass of 2001
Certifications & Licensure
CA State Medical License 2003 - 2025
KS State Medical License 2016 - 2019
MO State Medical License 2017 - 2019- American Board of Radiology Radiation Oncology
Publications & Presentations
PubMed
- Circulating Tumor HPV-DNA in the Management of HPV-Positive Oropharyngeal Carcinoma: A Systematic Review.Allen M Chen, Tjoson Tjoa, William B Armstrong
Head & Neck. 2025-01-23 - Hypofractionated radiation therapy alone for human papillomavirus-related oropharyngeal cancer.Allen M Chen, Jeremy P Harris, Tjoson Tjoa, Yarah Haidar, William B Armstrong
Head & Neck. 2025-01-01 - Chemoradiation for human papillomavirus positive oropharyngeal cancer in smokers: A single-institutional experience.Allen M Chen, Rupali Nabar, Tjoson Tjoa, Yarah Haidar, William B Armstrong
American Journal of Otolaryngology. 2024-12-22
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