Stanford University
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Esther M. John
Professor (Research) of Epidemiology and Population Health and of Medicine (Oncology)
Current Research and Scholarly InterestsDr. John has extensive expertise in conducting population-based epidemiologic studies and has led as Principal Investigator multiple large-scale studies, including multi-center studies with a study site in the San Francisco Bay Area with its diverse population. Many of her studies and collaborations investigated cancer health disparities. Her research has focused on the role of modifiable lifestyle factors (e.g., body size, physical activity, diet), hormonal factors, early-life exposures, genetic variants, and gene-environment interactions; differences in risk factors by race and ethnicity, breast cancer subtypes, and prostate cancer subtypes; risk factors for familial breast cancer and second primary breast cancer, as well as prognostic factors related to survival disparities.
As Principal Investigator, Dr. John has led a number of studies conducted in the San Francisco Bay Area, including:
- the Northern California site of the Breast Cancer Family Registry, an on-going prospective multi-generational cohort of over 13,000 families established in 1995 at six international sites;
- the San Francisco Bay Area Breast Cancer Study, a population-based case-control study in nearly 5,000 African American, Hispanic, and non-Hispanic White women that investigated the role of modifiable lifestyle factors and other risk factors;
- the California site of the Breast Cancer Health Disparities Study that investigated genetic variability and breast cancer risk and survival in Hispanic and non-Hispanic White populations in the context of genetic admixture;
- the Breast Cancer Etiology in Minorities (BEM) Study, a pooled analysis of risk factors for breast cancer subtypes in minoritized racial and ethnic populations;
- the Northern California site of the WECARE Study that investigates risk factors for second primary contralateral breast cancer;
- the Second Primary Breast Cancer Disparities Study, a pooled analysis of risk factors for contralateral and ipsilateral second primary breast cancer in a diverse population;
- the San Francisco Bay Area Prostate Cancer Study, a population-based case-control study of lifestyle and genetic risk factors for advanced and localized disease.
These studies collected and pooled extensive data and biospecimens and continue to support numerous ancillary studies, collaborations and international consortia and have contributed to a better understanding of cancer risk and survival in minoritized racial and ethnic populations.
Dr. John is a founding PI of the LEGACY Girls Study, a prospective cohort established in 2011 that investigates early life exposures in relation to pubertal development outcomes, breast tissue characteristics, and behavioral and psychosocial outcomes in the context of having a family history or breast cancer.
In 2023, Dr. John joined the Stanford investigator team of the MOSAAIC (The Multiethnic Observational Study in American Asian and Pacific Islander Communities) Study, a five-center study to improve health of American Asian, Native Hawaiian, and Pacific Islander populations. -
Roy Mattathu John, MD, PhD, FRCP
Clinical Professor, Medicine - Cardiovascular Medicine
BioDr. John is a fellowship-trained cardiologist with more than 25 years of experience. He is a clinical professor in the Department of Medicine at Stanford University School of Medicine.
He originally earned board certification in clinical cardiac electrophysiology in 1996 and has continued to recertify. He also has earned board certification in cardiovascular disease and internal medicine.
Dr. John diagnoses and manages all forms of cardiac arrhythmias including atrial fibrillation and ventricular arrhythmias. His special interests include catheter ablation for SVT, atrial arrhythmias, pacemaker and defibrillator implants, and lead extraction.
He has conducted extensive research. He has participated in large multi-center clinical trials, including over 30 studies as a primary investigator of drugs, devices, and ablation techniques. He helped pioneer a new way to manage scar-related ventricular tachycardia. He also helped develop innovations in cardiac pacemaker technology.
Dr. John has authored over 200 publications that include 126 original research papers. They have appeared in reputed journals such as the New England Journal of Medicine, Circulation, Lancet, Journal of the American College of Cardiology, European Heart Journal, Heart Rhythm, Journal of Cardiovascular Electrophysiology, and many more. Topics have included innovative, new techniques and technologies for the treatment of supraventricular arrhythmias, atrial fibrillation, ventricular tachycardia, catheter ablation, lead extraction, cardiac pacing, and defibrillation.
He was a member of the editorial board for Circulation and is currently on the editorial board of the publications Heart Rhythm Journal, Arrhythmia and Electrophysiology, Journal of Cardiac Electrophysiology, and Journal of Innovations in Cardiac Rhythm Management.
Dr. John also has written several chapters for medical textbooks such as Harrison’s Principles of Internal Medicine, Zipes Textbook on Cardiac Electrophysiology - Cell to Bedside, Conn’s Current Therapy, Electrical Disorders of the Heart, Cardiac Mapping, and many more.
He has made invited presentations to his peers at scientific sessions of the Heart Rhythm Society, American Heart Association, American College of Cardiology, and Heart Failure Society. He has delivered more than 60 national and international lectures. Subjects include cardiac pacing, defibrillation, heart failure, and arrhythmia management including catheter ablation for arrhythmias.
Dr. John is a fellow of the American College of Cardiology, Heart Rhythm Society, and Royal College of Physicians of London.
He has volunteered his time and expertise to provide free cardiac care to underserved patients in Bolivia, India, and Kenya. -
Castro Johnbosco
Postdoctoral Scholar, Orthopedic Surgery
BioI am a bioengineer working at the interface cell-biomaterial interface to study various biological process by engineering material driven invitro systems.
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Claire Johns
Clinical Assistant Professor, Pediatrics - Hematology & Oncology
BioFellowship: Pediatric Hematology Oncology Fellowship, Stanford Lucile Packard Children's Hospital 2022-2025
Residency: Pediatrics, University of California San Francisco 2019-2022
Medical School: University of California San Francisco, Class of 2019 -
Adam Johnson
Phil and Penny Knight Professor of Creative Writing
BioAdam Johnson is a Professor of English with emphasis in creative writing at Stanford University. Winner of a Whiting Award and Fellowships from the Guggenheim Foundation, the National Endowment for the Arts and the American Academy in Berlin, he is the author of several books, including Fortune Smiles, which won the National Book Award, and the novel The Orphan Master’s Son, which was awarded the Pulitzer Prize. His stories have appeared in Esquire, GQ, Playboy, Harper's Magazine, Granta, The Paris Review, The Best American Short Stories, The Best American Science Fiction and Fantasy and have been recognized with the Story Prize, The Sunday Times Short Story Award and the Dayton Literary Peace Prize. His work has been translated into more than three-dozen languages. He was born in South Dakota and is an enrolled member of the Cheyenne River Sioux Tribe. His teaching and research interests include the development of the novel, indigeneity, the oral tradition, counter narrative, trauma theory and speculative fiction.
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Ann R. Johnson
Associate Vice Provost, Research Compliance, Vice Provost and Dean of Research - Research Compliance
BioDr. Johnson is the Associate Vice Provost for Research Compliance at Stanford University, overseeing both human and animal research compliance programs. She specializes in research ethics and is an expert in human subjects research regulations and requirements. She is an active member of the research community having conducted research in the fields of public health and research ethics. She has taught undergraduate- and graduate-level courses and is an ardent supporter of research education. She participates in many national forums with the federal government, accrediting bodies, commercial IRBs, and academic research institutions to address problems and priorities for research oversight and quality. She helped establish a single IRB process for the University of Utah and the National Center for Advancing Translational Science-funded Trial Innovation Network. She also worked closely with the SMART IRB initiative to provide harmonized guidance on IRB reliance and the functions of human research protection programs. She also serves as a site visitor for the Association for the Accreditation of Human Research Protection Programs.
