1,953 articles
Martin McKee
Martin McKee, born Clifford Martin McKee in 1956, is a Northern Ireland–trained physician and professor of European public health at the London School of Hygiene and Tropical Medicine.
Martín-Josè Sepúlveda
Martín-Josè Sepúlveda is a physician and public health researcher who spent three decades at IBM and is now a Distinguished University Professor at Florida International University.
Mary D. Naylor
Mary D. Naylor is an American nurse-scientist at the University of Pennsylvania School of Nursing, architect of the Transitional Care Model and winner of the 2022 Gustav O. Lienhard Award.
Mary Jo Trepka
Mary Jo Trepka is an American infectious disease and health-disparities epidemiologist who chairs epidemiology at Florida International University and received the 2010 Presidential Early Career Award from President Obama.
Mary Mallon
Mary Mallon (1869-1938), "Typhoid Mary", Irish-born New York cook and first identified asymptomatic carrier of Salmonella typhi in the US; infected at least 122 people and spent about 26 years quarantined on North Brother Island.
Mass Chest X-Ray
Mass chest X-ray, known as mass miniature radiography, screens large populations for tuberculosis and heart and lung disease, widely used from the 1930s to the 1960s.
Mass drug administration
Mass drug administration (MDA) is the delivery of a full drug course to an entire population regardless of symptoms or infection, central to neglected tropical disease control.
Mass Screening
Mass screening (population screening): large-scale testing of asymptomatic whole populations for disease, defined by WHO and the 1968 Wilson-Jungner principles; distinct from selective and opportunistic screening, with benefits limited by overdiagnosis and false positives.
Mass vaccination
Mass vaccination, also called mass immunization, is the delivery of vaccines to a large number of people in a short time, used to raise herd immunity during outbreaks.
Massachusetts Department of Public Health
The Massachusetts Department of Public Health is the state agency responsible for promoting health and preventing illness, working alongside 351 autonomous city and town health departments.
Massachusetts General Hospital
Massachusetts General Hospital (MGH), Boston teaching hospital of Harvard Medical School founded 1811, third oldest US hospital, founding member of Mass General Brigham, largest US hospital-based research program, site of the 1846 anesthesia demonstration.
Master protocol
A master protocol is a single clinical trial protocol with multiple substudies evaluating one or more drugs in one or more diseases, including umbrella, basket, and platform trials.
MATCH study
MATCH (NCT04572568) is a nationwide prospective registry of brain arteriovenous malformations led by Beijing Tiantan Hospital, enrolling about 4,000 patients across 52 Chinese hospitals since 2011 to study natural history, hemorrhage predictors, and multimodality treatment outcomes.
Maternal death
Maternal death: death of a woman while pregnant or within 42 days of pregnancy's end from pregnancy-related causes, measured as the MMR per 100,000 live births; global MMR fell from 328 (2000) to 197 (2023), with about 260,000 deaths in 2023.
Maternity Hospitals
Maternity hospitals, historically called lying-in hospitals, are hospitals specializing in care for women during pregnancy and childbirth. Key facts: Göttingen 1751 origin, rooming-in, birth center alternatives, US rural ward closures.
Matlazahuatl epidemic
The matlazahuatl epidemic of 1736–1739 was an outbreak of epidemic typhus that began in Tacuba and swept the Viceroyalty of New Spain, killing more than 40,000 people in Mexico City alone.
MATRIX trial (NCT01433627)
MATRIX (NCT01433627), Minimizing Adverse Haemorrhagic Events by Transradial Access Site and Systemic Implementation of AngioX, a three-trial European randomized program in acute coronary syndrome: radial vs femoral access, bivalirudin vs heparin, and bivalirudin infusion duration.
Matthew Klaric
Matthew Klaric is an American computer scientist serving as Chief Data Scientist of the National Geospatial-Intelligence Agency since September 2023, known for satellite-image retrieval research and early Project Maven funding work.
Maureen Bisognano
Maureen Bisognano is an American healthcare quality improvement leader who led the Institute for Healthcare Improvement as President and CEO from 2010 to 2015 and is a member of the National Academy of Medicine.
MAVAN study
MAVAN (Maternal Adversity, Vulnerability and Neurodevelopment) is a Canadian prospective birth cohort of about 578-590 mother-child dyads recruited 2003-2009 in Montreal and Hamilton, studying prenatal adversity, gene-environment interaction, and child mental health, with the MAVAN-R adult follow-up at age 22.
Max Michael Jr
Max Michael Jr was a physician and medical educator who served as the first dean of the University of Florida College of Medicine's Jacksonville campus, from 1962 to 1985.
Maximum tolerated dose
The maximum tolerated dose (MTD) is the highest dose of a drug that can be given without unacceptable toxicity, historically the target of phase I oncology dose-escalation trials.
Mayo Clinic
Mayo Clinic, also called the Mayo Foundation for Medical Education and Research, is a nonprofit academic medical center in Rochester, Minnesota, with Arizona and Florida campuses, founded in 1864 by William Worrall Mayo, serving 1.3 million patients yearly.
McGill University Health Centre
McGill University Health Centre (MUHC/CUSM), Montreal academic health network affiliated with McGill University, formed 1997 by merger of five hospitals; Glen site opened 2015; tertiary and quaternary care, 17,000+ staff, four hospitals.
McLean Hospital
McLean Hospital, founded 1811 in Charlestown and in Belmont, Massachusetts since 1895, is Harvard Medical School's primary psychiatric teaching hospital and a Mass General Brigham member, ranked #2 in U.S. News 2025-26 psychiatry.
Medanta
Medanta, also known as Medanta Hospital, is an Indian multi-specialty hospital network founded in 2009 by cardiac surgeon Dr. Naresh Trehan, with its flagship hospital in Gurugram.
Median lethal dose
Median lethal dose (LD50) is the dose expected to kill 50% of a test animal population, a standard acute toxicity measure in mg/kg. Introduced by Trevan in 1927; the classical OECD 401 test was deleted in 2002 for fewer-animal methods 420, 423, and 425.
Medicaid
Medicaid, the joint federal-state U.S. health insurance program created by the Social Security Amendments of 1965, covers low-income children, pregnant women, seniors, and people with disabilities; over 77.9 million enrollees, FMAP 50-83%, ACA expansion to 138% FPL, 2025 law adds work requirements.
Medical anthropology
Medical anthropology: anthropological subfield studying health, illness, and medicine as biosocial phenomena; also called health anthropology by some scholars. Founded formally in the late 1970s; ethnographic and mixed methods.
Medical Assistance
Medical Assistance: financing of medical care for public assistance recipients (MeSH D008483); in the US, Medicaid (Title XIX, 1965) and CHIP, jointly financed federal-state coverage for low-income people, now facing 2027 work requirements.