RESEARCH BASE
Search 3,721 documents across 34 fields — every claim tier-rated by evidence
3,633 are the core, quality-scored corpus (34 lettered sections — see How We Work); the remaining 88 are cross-corpus synthesis documents (68 InterDocs, 12 Connections, 8 Theories) also indexed here.
2,036 results for "CT scan" — page 36 of 102
X_1_15 — Greek and Roman Medicine: Hippocrates, Galen, and Western Medical Foundations
Greek and Roman medicine constitutes the foundational tradition of Western medical science, spanning from the 5th century BCE to the 3rd century CE and dominating medical thought for over 1,500 years. Hippocrates of Kos
X_1_13 — Indigenous Bone-Setting and Manual Therapy
Bone-setting and manual therapy — the physical manipulation of bones, joints, and soft tissues to treat musculoskeletal injuries and conditions — have been practiced in virtually every known culture throughout human hist
X_1_05 — Herbalism and Ethnobotany: Cross-Cultural Plant Medicine
Plants have been humanity's primary pharmacy for the entirety of our species' history — from Neanderthal hearths containing medicinal chamomile and yarrow (El Sidrón, ~50,000 BP) to the modern pharmaceutical industry, wh
X_4_04 — Nursing and Caregiving History
Nursing — the professional practice of patient care, health promotion, and illness prevention — has evolved from informal family and religious caregiving to a scientifically grounded profession. Pre-modern: caregiving fe
X_4_07 — Midwifery and Obstetric History
Midwifery and obstetrics — the care of women during pregnancy, childbirth, and the postpartum period — have been practiced since prehistory, making birth attendance one of the oldest forms of specialized health care. Anc
X_4_06 — Dentistry and Oral Health History
Dentistry — the treatment of diseases and conditions of the oral cavity — has evolved from folk remedy and brutal extraction to a sophisticated medical specialty. Ancient: evidence of dental work extends to the Neolithic
X_4_14 — Global Health: Equity, Systems, and Planetary Well-Being
Global health is the field concerned with improving health and achieving health equity for all people worldwide — transcending national boundaries and addressing the determinants of health at population, environmental, a
X_4_13 — Palliative Care and Hospice: Medicine at the End of Life
Palliative care — specialized medical care focused on providing relief from the symptoms, pain, and stress of serious illness, with the goal of improving quality of life for both the patient and the family — and hospice
X_4_21 — Wound Healing & Human Regeneration Potential
Wound healing and regeneration represent one of biology's most tantalizing puzzles: why can a salamander regrow an entire limb, a zebrafish regenerate its heart, and a planarian reconstruct its entire body from a small f
X_4_10 — Telemedicine and Digital Health
Telemedicine — the delivery of healthcare services at a distance using telecommunications technology — and digital health — the broader application of digital technologies to health and healthcare — have evolved from ear
X_3_19 — Gastroenterology & Digestive Disorders
Gastroenterology encompasses the study and treatment of the entire gastrointestinal (GI) tract — from esophagus to rectum — along with the liver, pancreas, and biliary system. The human gut is the body's largest immune o
X_3_10 — Ophthalmology and Vision Science
Ophthalmology — the medical and surgical treatment of eye diseases — and vision science — the study of how vision works — have intertwined histories spanning millennia. Ancient: eye diseases are among the most frequently
X_3_30 — Barrier Permeability and Consciousness State Transitions
The blood-brain barrier, intestinal epithelium, and neuronal cell membrane are not passive filters but actively gated information interfaces whose permeability state directly modulates conscious experience. Pharmacologic
X_3_21 — Pulmonology & Respiratory Medicine
Pulmonology encompasses the diagnosis and treatment of disease affecting the respiratory system — from upper airways to alveolar gas exchange. Respiratory diseases collectively represent the third leading cause of death
X_3_18 — Immunotherapy: From Coley's Toxins to Checkpoint Inhibitors
Immunotherapy — harnessing the immune system to fight cancer and other diseases — was pioneered by William Coley (Memorial Hospital, New York), who injected bacterial toxins into inoperable sarcomas beginning in 1891 and
X_3_07 — Organ Transplantation
Organ transplantation — the surgical transfer of an organ from one body (donor) to another (recipient) — is one of the most remarkable achievements of modern medicine, transforming previously fatal organ failure into a t
X_3_05 — Antibiotics and Antimicrobial Resistance
Antibiotics — substances that kill or inhibit bacterial growth — represent one of the most transformative medical discoveries in human history, having saved an estimated 200 million+ lives since their introduction. Their
X_3_17 — Wound Healing: Coagulation, Tissue Repair, and Chronic Wounds
Wound healing is a highly coordinated biological process involving four overlapping phases: hemostasis, inflammation, proliferation, and remodeling. The coagulation cascade — a proteolytic chain reaction of clotting fact
X_3_24 — Gastroenterology: Microbiome Therapeutics, IBD & Gut-Brain Axis
Gastroenterology — the study and treatment of the digestive system — has undergone a revolution driven by three transformative discoveries: the bacterial etiology of peptic ulcers, the gut microbiome's role in systemic h
X_3_28 — Cancer Immunotherapy Revolution
Cancer immunotherapy — harnessing the body's own immune system to recognize and destroy tumor cells — has transformed oncology from a field dominated by surgery, radiation, and chemotherapy into one where the immune syst
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