1 Earle A. Chiles Research Institute at Providence Cancer Center, 4805 NE Glisan St. Suite 2N35, Portland, OR 97213, United States; Providence Oral, Head and Neck Cancer Program and Clinic, Providence Cancer Center, Providence Portland Medical Center, 4805 NE Glisan St. Suite 6N50, Portland, OR 97213, United States; Head and Neck Institute, 1849 NW Kearney, Suite 300, Portland, OR 97209, United States. Electronic address: Richard.bell@providence.org.
2 Earle A. Chiles Research Institute at Providence Cancer Center, 4805 NE Glisan St. Suite 2N35, Portland, OR 97213, United States.
3 Earle A. Chiles Research Institute at Providence Cancer Center, 4805 NE Glisan St. Suite 2N35, Portland, OR 97213, United States; Providence Oral, Head and Neck Cancer Program and Clinic, Providence Cancer Center, Providence Portland Medical Center, 4805 NE Glisan St. Suite 6N50, Portland, OR 97213, United States; The Oregon Clinic, Department of Radiation Oncology, 4805 NE Glisan St., Portland, OR 97213, United States.
4 Earle A. Chiles Research Institute at Providence Cancer Center, 4805 NE Glisan St. Suite 2N35, Portland, OR 97213, United States; Providence Oral, Head and Neck Cancer Program and Clinic, Providence Cancer Center, Providence Portland Medical Center, 4805 NE Glisan St. Suite 6N50, Portland, OR 97213, United States.