Stanford Cancer Institute Directory
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Associate Professor of Genetics and, by courtesy, of Applied Physics
William Greenleaf is an Assistant Professor in the Genetics Department at Stanford University School of Medicine, with a courtesy appointment in the Applied Physics Department. He is a member of Bio-X, the Biophysics Program, the Biomedical Informatics Program, and the Cancer Center. He received an A.B. in physics from Harvard University (summa cum laude) in 2002, and received a Gates Fellowship to study computer science for one year in Trinity College, Cambridge, UK (with distinction). After this experience abroad, he returned to Stanford to carry out his Ph.D. in Applied Physics in the laboratory of Steven Block, where he investigated, at the single molecule level, the chemo-mechanics of RNA polymerase and the folding of RNA transcripts. He conducted postdoctoral work in the laboratory of X. Sunney Xie in the Chemistry and Chemical Biology Department at Harvard University, where he was awarded a Damon Runyon Cancer Research Foundation Fellowship, and developed new fluorescence-based high-throughput sequencing methodologies. He moved to Stanford as an Assistant Professor in November 2011. Since beginning his lab, he has been named a Rita Allen Foundation Young Scholar, an Ellison Foundation Young Scholar in Aging (declined), a Baxter Foundation Scholar, and a Chan-Zuckerberg Investigator. His highly interdisciplinary research links molecular biology, computer science, bioengineering, and genomics a to understand how the physical state of the human genome controls gene regulation and biological state. Efforts in his lab are split between building new tools to leverage the power of high-throughput sequencing and cutting-edge microscopies, and bringing these new technologies to bear against basic biological questions of genomic and epigenomic variation. His long-term goal is to unlock an understanding of the physical “regulome” — i.e. the factors that control how the genetic information is read into biological instructions — profoundly impacting our understanding of how cells maintain, or fail to maintain, their state in health and disease.
Johnson & Johnson Professor of Surgery and Professor, by courtesy, of Bioengineering and of Materials Science and Engineering
Associate Professor of Medicine (Primary Care and Population Health) at the Palo Alto Veterans Affairs Health Care System
Professor (Research) of Pediatrics (Adolescent Medicine) and, by courtesy, of Health Research and Policy (Epidemiology)
Dr. Halpern-Felsher is a developmental psychologist whose research has focused on cognitive and psychosocial factors involved in adolescents’ and young adults’ health-related decision-making, perceptions of risk and vulnerability, health communication, and risk behavior. Her research has focused on understanding and reducing health risk behaviors such as tobacco use, alcohol and marijuana use, risky driving, and risky sexual behavior. Her research has been instrumental in changing how providers discuss sexual risk with adolescents and has influenced national policies regulating adolescent and young adult tobacco use. As part of the Tobacco Center's of Regulatory Science (TCORS), she is the PI on an NIH/NCI and FDA-funded longitudinal study examining adolescents’ and young adults’ perceptions regarding as well as initiation, continuation, and cessation of current and new tobacco products, including e-cigarettes and smokeless tobacco. Dr. Halpern-Felsher is also the founder and director of the Tobacco Prevention Toolkit, an online curricular aimed at reducing and preventing youth tobacco use. Dr. Halpern-Felsher’s research and committee work have been instrumental in setting policy at the local, state, and national level. In California, Dr. Halpern-Felsher’s research was cited in support of school-based tobacco education initiatives within California’s Tobacco Education Research Oversight Committee’s 2012 Masterplan, and again in their 2017 Masterplan. This Masterplan sets funding priority areas for research, education and intervention for California. Dr. Halpern-Felsher is also collaborating with the California Department of Education to develop, implement and evaluate new school-based tobacco prevention and education materials. At the national level, Dr. Halpern-Felsher’s research was highlighted in the 2012 Surgeon General Report, ”Preventing Tobacco Use among Youth and Young Adults,” and Dr. Halpern-Felsher contributed to the chapter on Clinical interventions: The role of health care providers in the prevention of youth tobacco use. Dr. Halpern-Felsher has been a member of five Institute of Medicine, National Academies of Sciences committees focusing on adolescent and young adult health risk behavior. She has served on the Board of Directors of the Society for Adolescent Health and Medicine and currently serves on the Council for the Society for Pediatric Research (SPR), and Co-Chairs the SPR Mentoring Committee. In 2007, Dr. Halpern-Felsher became one of the Program Directors for the NIH/NIDDK-funded Short-Term Research Experience for Underrepresented Persons (STEP-UP), High School Program. She has received two NIH 5-year grants to coordinate this program thus far. For this Step-Up Program, Dr. Halpern-Felsher mentors and supervises 22-25 junior and senior high school students each year. These high students are recruited throughout the country, and conduct their 8-10 weeks of research in their hometown. In addition to mentoring high school students, Dr. Halpern-Felsher has been a mentor to over 75 graduate and medical students and postdoctoral fellows.
Professor of Radiation Oncology (Radiation Therapy) at Stanford University Medical Center
Dr. Steven Hancock is a Professor of Radiation Oncology at Stanford University Medical Center who has practiced at Stanford for over 30 years. He specializes in genitourinary cancers, such as prostate cancer, bladder cancer, kidney cancer, penile and urethral cancers. He also specializes in radiation and radiosurgery treatment of malignant and benign conditions that affect the central nervous system, including glioblastoma, astrocytoma, oligodendroglioma, meningioma, acoustic neuroma, arteriovenous malformations, and hemangioblastomas associated wtih Von Hippel Lindau syndrome. Dr. Hancock serves on the National Cancer Center Network (NCCN) guidelines panels for Kidney and Testicular cancers. Research activities have involved initial clinical trials of radiation sensitizer and hypoxic cell cytotoxic agents, initial clinical evaluation of the Cyberknife radiosurgical instrument and longitudinal studies of treatment outcomes and late effects of radiation therapy, such as secondary malignancies and radiation associated cardiovascular disease. Current interests are in the application of new imaging and treatment technologies for improving tumor control and minimizing short and long term side effects of radiation and combined modality therapy.
Clinical Associate Professor, Radiation Oncology - Radiation Therapy
Dr. Wendy Hara specializes in the treatment of head and neck and skin cancers. Dr. Hara has a special interest in intraoperative radiation therapy (IORT) and Stereotactic Body Radiation Therapy (SBRT).