Duke University Medical Center, Durham, North Carolina, United States
Duke University Medical Center, Department of Radiation Oncology, Durham, North Carolina, United States
Greater Los Angeles VA Medical Center, Los Angeles, California, United States
Duke University Medical Center, Durham, North Carolina, United States
University of California, Los Angeles, Los Angeles, California, United States
Duke University Medical Center, Durham, North Carolina, United States
Duke University Medical Center, Durham, North Carolina, United States
Duke University Medical Center, Durham, North Carolina, United States
Duke University Medical Center, Durham, North Carolina, United States
Alamance Regional Medical Center, Burlington, North Carolina, United States
Duke University Medical Center, Durham, North Carolina, United States
Oregon Health and Science University, Portland, Oregon, United States
University of Washington/Seattle Cancer Care Alliance, Seattle, Washington, United States
Duke University Medical Center, Durham, North Carolina, United States
Duke Center for Nicotine & Smoking Cessation Research, Durham, North Carolina, United States