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Gastrointestinal Bleeding
Gastrointestinal (GI) bleeding arising from lesions in the alimentary canal can be attributed to a variety of pathological and rarely even physiologically normal conditions such as simple tearing, vomiting, or excessive coughing. The entire digestive tract, consisting of the esophagus, ...
- Children's Health
- Adolescent Development
- Adolescent Health
- Adoption Medicine
- Alcohol and Youth
- Asthma in Children
- Birth Defects
- Breech Birth
- Child Abuse
- Child Behavior Disorders
- Child Dental Health
- Child Development
- Child Mental Health
- Child Safety
- Childhood Cancers
- Childhood Immunization
- Diabetes Type I (Juvenile Diabetes)
- Dysmorphology
- Exercise for Children
- Failure to Thrive
- Fetal Alcohol Syndrome
- Hearing Problems in Children
- Infant and Newborn Care
- Infant and Toddler Development
- Infant and Toddler Health
- Juvenile Rheumatoid Arthritis
- Neonatologist
- Neonatology
- Pediatrics
- Premature Babies
- Prenatal Care
- Rickets
- Smoking and Youth
- Spina Bifida
- Sudden Infant Death Syndrome
- Tanner Stages
- Countries: Africa
- Algeria
- Angola
- Benin
- Botswana
- Brunei Darussalam
- Burkina Faso
- Burundi
- Côte d'Ivoire
- Cameroon
- Cape Verde
- Central African Republic
- Chad
- Comoros
- Congo
- Congo, Democratic Republic
- Djibouti
- Egypt
- Equatorial Guinea
- Eritrea
- Ethiopia
- Gabon
- Gambia
- Ghana
- Guinea
- Guinea-Bissau
- Kenya
- Lesotho
- Liberia
- Madagascar
- Malawi
- Mali
- Mauritania
- Mauritius
- Morocco
- Mozambique
- Namibia
- Niger
- Nigeria
- Rwanda
- São Tomé and Principe
- Senegal
- Sierra Leone
- Somalia
- South Africa
- Sudan
- Swaziland
- Tanzania
- Togo
- Tunisia
- Uganda
- Zambia
- Zimbabwe
- Countries: Americas
- Antigua and Barbuda
- Argentina
- Bahamas
- Barbados
- Belize
- Bolivia
- Brazil
- Canada
- Chile
- Colombia
- Costa Rica
- Cuba
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- Dominican Republic
- Ecuador
- El Salvador
- Grenada
- Guatemala
- Guyana
- Haiti
- Honduras
- Jamaica
- Mexico
- Nicaragua
- Panama
- Paraguay
- Peru
- Saint Kitts and Nevis
- Saint Lucia
- Saint Vincent and the Grenadines
- Suriname
- Trinidad and Tobago
- United States Statistics
- Uruguay
- Venezuela
- Countries: Asia
- Afghanistan
- Azerbaijan
- Bahrain
- Bangladesh
- Bhutan
- Cambodia
- China
- East Timor
- Georgia
- India
- Indonesia
- Iran
- Iraq
- Israel
- Japan
- Jordan
- Kazakhstan
- Korea, North
- Korea, South
- Kuwait
- Kyrgyzstan
- Laos
- Lebanon
- Malaysia
- Maldives
- Moldova
- Mongolia
- Myanmar
- Nepal
- Oman
- Pakistan
- Palestine
- Philippines
- Qatar
- Russia
- Saudi Arabia
- Seychelles
- Singapore
- Sri Lanka
- Syria
- Tajikistan
- Thailand
- Turkey
- Turkmenistan
- Ukraine
- United Arab Emirates
- Uzbekistan
- Vietnam
- Yemen
- Countries: Europe
- Albania
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- Armenia
- Austria
- Belarus
- Belgium
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- Bulgaria
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- Cyprus
- Czech Republic
- Denmark
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- Germany
- Greece
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- Iceland
- Ireland
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- Latvia
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- Lithuania
- Luxembourg
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- Malta
- Monaco
- Netherlands
- Norway
- Poland
- Portugal
- Romania
- San Marino
- Serbia and Montenegro
- Slovakia
- Slovenia
- Spain
- Sweden
- Switzerland
- United Kingdom
- Countries: Pacific
- Diseases, Cancers
- Adrenocortical Carcinoma
- Anal Cancer
- Bile Duct Cancer
- Bladder Cancer
- Bone Cancer
- Brain Cancer
- Breast Cancer
- Cancer (General)
- Carcinoid Tumors
- Carcinoma of Unknown Primary
- Colorectal Cancer
- Esophageal Cancer
- Extragonadal Germ Cell Tumor
- Eye Cancer
- Gallbladder Cancer
- Head and Neck Cancer
- Hodgkin's Lymphoma
- Kidney Cancer
- Leukemia
- Liver Cancer
- Lung Cancer
- Malignant Mesothelioma
- Multiple Myeloma
- Neuroblastoma
- Non-Hodgkin Lymphoma
- Oncologist
- Oncology
- Oral Cancer
- Osteonecrosis
- Ovarian Cancer
- Pancreatic Cancer
- Penile Cancer
- Pheochromocytoma
- Pituitary Tumor
- Prostate Cancer
- Skin Cancer
- Small Intestine Cancer
- Soft Tissue Sarcoma
- Stomach Cancer
- Testicular Cancer
- Thymus Cancer
- Thyroid Cancer
- Uterine Cancer
- Vaginal Cancer
- Vulvar Cancer
- Diseases, Localized
- Acid Reflux
- Acne
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- Alzheimer's Disease
- Amblyopia
- Anal/Rectal Diseases
- Aneurysms
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- Aphasia
- Appendicitis
- Arrhythmia
- Arteriosclerosis
- Asbestos/Asbestosis
- Asthma
- Back Injuries
- Back Pain
- Bell's Palsy
- Birthmark
- Bladder Diseases
- Blepharitis
- Blepharospasm
- Blindness
- Bone Diseases
- Bone Marrow Diseases
- Brain Diseases
- Brain Injuries
- Brain Malformations
- Breast Diseases
- Breathing Problems
- Bronchitis
- Carpal Tunnel Syndrome
- Cataract
- Celiac Disease
- Cellulitis
- Chlamydia Infections
- Chronic Obstructive Pulmonary Disease (COPD)
- Cirrhosis
- Cleft Lip and Palate
- Colon Polyps
- Colonic Diseases (General)
- Concussion
- Congenital Heart Disease
- Conjunctivitis
- Connective Tissue Disorders
- Constipation
- Cornea and Corneal Disease
- Coronary Disease
- Deafness
- Dental Health
- Dermatitis
- Diabetic Eye Problems
- Diabetic Foot
- Diabetic Kidney Problems
- Diabetic Nerve Problems
- Diabetic Teeth and Gum Problems
- Diarrhea
- Digestive Diseases (General)
- Diverticulosis and Diverticulitis
- Dysphagia
- Ear Disorders
- Ear Infections
- Elbow Injuries and Disorders
- Emphysema
- Esophagus Disorders
- Eye Diseases (General)
- Facial Injuries and Disorders
- Foot Health
- Foot Injuries and Disorders
- Fractures
- Gallbladder and Bile Duct Diseases
- Gastroesophageal Reflux/Hiatal Hernia
- Gastrointestinal Bleeding
- Genetic Brain Disorders
- Genital Herpes
- Glaucoma
- Glomerular Diseases
- Goiter
- Gonorrhea
- Gout and Pseudogout
- Gum Disease
- Hair Diseases and Hair Loss
- Hand Injuries and Disorders
- Head and Brain Injuries
- Head and Brain Malformations
- Head Lice
- Headache and Migraine
- Heart Attack
- Heart Diseases (General)
- Heart Valve Diseases
- Hemorrhoids
- Hepatitis
- Hepatitis C
- Hernia
- Hip Injuries and Disorders
- Huntington's Disease
- Hydrocephalus
- Impetigo
- Incontinence
- Inflammatory Bowel Disease
- Intestinal Parasites
- Irritable Bowel Syndrome
- Kidney Diseases (General)
- Kidney Failure and Dialysis
- Kidney Stones
- Knee Injuries and Disorders
- Leg Injuries and Disorders
- Liver Diseases (General)
- Low Vision
- Meniere's Disease
- Mouth Disorders
- Neck Disorders and Injuries
- Neural Tube Defects
- Nose Disorders
- Onchocerciasis
- Paget's Disease of Bone
- Pancreatic Diseases
- Peptic Ulcer
- Pneumonia
- Polycystic Kidney Disease
- Pulmonary Embolism
- Pulmonary Fibrosis
- Raynaud's Disease
- Respiratory Diseases (General)
- Retinal Disorders
- Rheumatic Heart Disease
- Rosacea
- Salivary Gland Disorders
- Scoliosis
- Severe Acute Respiratory Syndrome (SARS)
- Shoulder Injuries and Disorders
- Sinusitis
- Skin Diseases (General)
- Skin Pigmentation Disorders
- Spinal Cord Diseases
- Spinal Cord Injuries
- Spinal Muscular Atrophy
- Spinal Stenosis
- Spleen Diseases
- Stomach Disorders
- Taste and Smell Disorders
- Temporomandibular Joint Dysfunction
- Thoracic Outlet Syndrome
- Throat Disorders
- Thyroid Diseases
- Tinnitus
- Trachoma
- Tuberculosis
- Ulcers
- Urinary Tract Infections
- Usher Syndrome
- Vitiligo
- Voice Disorders
- Wrist/Arm Injuries and Disorders
- Diseases, Systemic
- E. Coli Infections
- Acquired Mutation
- Addison's Disease
- AIDS
- AIDS and Infections
- AIDS-Related Malignancies
- Alcoholism
- Allergy
- Anemia
- Anorexia Nervosa
- Arthritis
- Autoimmune Diseases (General)
- Bacterial Infections
- Beriberi
- Bird Flu
- Bleeding Disorders
- Botulism
- Bulimia
- Bursitis
- Cerebral Palsy
- Chagas Disease
- Chickenpox
- Cholera
- Chronic Fatigue Syndrome
- Coma
- Common Cold
- Cystic Fibrosis
- Degenerative Nerve Diseases
- Dengue
- Developmental Disabilities
- Diabetes
- Diabetes Type II
- Diphtheria
- Disabilities (General)
- Dizziness and Vertigo
- Down Syndrome
- Dystonia
- Eating Disorders
- Edema
- Ehlers-Danlos Syndrome
- Endocrine Diseases (General)
- Epilepsy
- Fainting
- Fever
- Filariasis/Elephantiasis
- Food Allergy
- Foodborne Diseases
- Fungal Infections
- Gaucher's Disease
- Genetic Disorders
- Germline Mutation
- Giardia Infections
- Growth Disorders
- Guillain-Barre Syndrome
- Hemorrhagic Fever
- Herpes Simplex
- High Blood Pressure
- Hyperactivity
- Hypoglycemia
- Hypothermia
- Immune System and Disorders
- Infectious Diseases (General)
- Influenza
- Klinefelter's Syndrome
- Kwarshiorkor
- Lactose Intolerance
- Lead Poisoning
- Legionnaire's Disease
- Leishmaniasis
- Leprosy
- Leukodystrophies
- Lou Gehrig's Disease
- Low Blood Pressure
- Lupus
- Lyme Disease
- Lymphatic Diseases
- Malaria
- Marasmus
- Marfan Syndrome
- Measles
- Meningitis
- Metabolic Disorders
- Missense Mutation
- Movement Disorders
- Multiple Chemical Sensitivity
- Multiple Sclerosis
- Mumps
- Muscle Disorders
- Muscular Dystrophy
- Myasthenia Gravis
- Myositis
- Nausea and Vomiting
- Neurofibromatosis
- Neurologic Diseases (General)
- Neuromuscular Disorders
- Nonsense Mutation
- Osteoarthritis
- Osteogenesis Imperfecta
- Pain
- Paralysis
- Parasitic Diseases
- Parathyroid Disorders
- Parkinson's Disease
- Peripheral Nerve Disorders
- Phenylketonuria
- Pituitary Disorders
- Point Mutation
- Poisoning
- Polio and Post-Polio Syndrome
- Polymyalgia Rheumatica
- Porphyria
- Prader-Willi Syndrome
- Psoriasis
- Rabies
- Reflex Sympathetic Dystrophy
- Rett Syndrome
- Reye Syndrome
- Rheumatoid Arthritis
- Rubella
- Salmonella Infections
- Sarcoidosis
- Scleroderma
- Seizures
- Sexually Transmitted Diseases
- Shingles (Herpes Zoster)
- Shistosomiasis
- Sickle Cell Anemia
- Sjogren's Syndrome
- Smallpox
- Somatic Mutation
- Staphylococcal Infections
- Streptococcal Infections
- Stress
- Stroke
- Tay-Sachs Disease
- Tetanus
- Tourette Syndrome
- Transient Ischemic Attack
- Tremor
- Tuberous Sclerosis
- Turner's Syndrome
- Typhoid
- Vasculitis
- Viral Infections
- Whooping Cough
- Wilson's Disease
- Drugs and Drug Companies
- Adult Immunization
- Amphetamines
- Anabolic Steroids
- Antibiotics
- Drug and Medical Device Safety
- Generic Drug
- Immunization/Vaccination
- Inhalants
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- Me-Too Drug
- Over-the-Counter (OTC) Drug
- Pharmaceutical Industry (Worldwide)
- Pharmacist
- Pharmacoepidemiology
- Pharmacogenetics
- Pharmacogenomics
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- Pharmacopeia/Pharmacopoeia
- Pharmacy
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- Prescription Drugs Abuse
- United States Pharmacopeia and National Formulary (USP-NF)
- Health Sciences
- Acquired Immunity
- Active Immunity
- Activities of Daily Living (ADLs)
- Aerospace Medicine
- African American Health
- AIDS, Living with
- Air Pollution
- Alcohol Consumption
- Allele
- Allopathy
- Alpha Error
- Alternative Medicine
- Alzheimer's Caregivers
- Amputees
- Anthrax
- Antioxidants
- Artificial Limbs
- Asian American Health
- Background Radiation
- Bacteriology
- Base Excision Repair
- Base Pair
- Base Sequence
- Beta Error
- Biochemistry
- Biodefense
- Bioinformatics
- Biological and Chemical Weapons
- Biomarker
- Biosafety
- Bioterrorism
- Birth Cohort
- Birth Rate
- Bisexual
- Body Cell Mass
- Body Mass Index
- Body Surface Area
- Bone Health
- Bone Mass Density
- Bone Mineral Density
- Brown Fat
- Burns
- Caffeine
- Calcium
- Cancer—Coping with Cancer
- Cardiologist
- Cardiology
- Caregivers
- Carotenoid
- Cascade
- Centenarian
- Cervical Spine
- Chemokine
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- Chinese Medicine, Traditional
- Cholesterol
- Chromosome
- Chronology of Global Health
- Circadian
- Clone
- Club Drugs
- Cocaine Abuse
- Coefficient of Inbreeding
- Complex Humanitarian Emergencies
- Conventional Medicine
- Craniology
- Crossing Over
- Crude Mortality Rate
- Cytogenetics
- Cytokine
- Daily Reference Values (DRVs)
- Date Rape
- Death and Dying
- Death Rate
- Demographic Transition
- Diesel Exhaust
- Dieting
- Disasters and Emergency Preparedness
- Disease and Poverty
- Disease Prevention
- Dizygotic Twin
- DNA
- DNA Repair
- Drinking Water
- Drug Abuse
- Dyslexia
- Ecogenetics
- Ectoparasites
- Elder Abuse
- Electromagnetic Fields
- Electrophysiology
- Empiric Risk
- Endemic
- Endocrinology
- Engram
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- Environmental Medicine
- Environmental Tobacco Smoke (ETS)
- Environmental Toxicology
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- Epidemiologist
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- Evidence-Based Medicine
- Exercise for Seniors
- Exercise/Physical Fitness
- Eye Care
- Falls
- False Negative
- False Positive
- First American Medical School
- Flea Bites
- Fluoride
- Folic Acid
- Food Contamination/Poisoning
- Food Safety
- Forensic Medicine
- Fraternal Twins
- Gastroenterologist
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- Gay Gene
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- Genomic Library
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- Hardy-Weinberg Law
- Healthcare, Africa
- Healthcare, Asia and Oceania
- Healthcare, Europe
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- Healthcare, U.S. and Canada
- Heart Diseases—Prevention
- Heat Index
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- Herbalism
- Herbalist
- Heroin Abuse
- Heterosexual
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- Homozygote
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- Nutritionist
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- Occupational Injuries
- Occupational Medicine
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- People
- Abse, Dannie
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- Nirenberg, Marshall W.
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- Sabin, Albert
- Sabin, Florence R.
- Sachs, Jeffrey
- Schweitzer, Albert
- Soper, Fred L.
- Stewart, Alice
- Stickler, Gunnar B.
- Thomas, Lewis
- Thorn, George W.
- Varco, Richard L.
- Warshaw, Joseph
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- Wilkins, Lawson
- Zoll, Paul M.
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- International Health Ministries Office (IHMO)
- Joint FAO/WHO Expert Committee on Food Additives (JECFA)
- Joint United Nations Programme in HIV/AIDS (UNAIDS)
- Managed Care
- Medicaid
- Medical Research Council
- Medicare
- Medigap Policy
- MEDLINE
- Mine Safety and Health Administration (MSHA)
- National Cancer Institute (NCI)
- National Center for Chronic Disease Prevention and Health Promotion (NCCDPHP)
- National Center for Complementary and Alternative Medicine (NCCAM)
- National Center for Environmental Health (NCEH)
- National Center for Health Marketing (NCHM)
- National Center for Health Statistics (NCHS)
- National Center for HIV, STD, and TB Prevention (NCHSTP)
- National Center for Infectious Diseases (NCID)
- National Center for Injury Prevention and Control (NCIPC)
- National Center for Public Health Informatics (NCPHI)
- National Center on Birth Defects and Developmental Disabilities (NCBDDD)
- National Cholesterol Education Program (NCEP)
- National Eye Institute (NEI)
- National Heart, Lung, and Blood Institute (NHLBI)
- National Human Genome Research Institute (NHGRI)
- National Immunization Program (NIP)
- National Institute of Allergy and Infectious Diseases (NIAID)
- National Institute of Arthritis and Musculoskeletal and Skin Diseases (NIAMS)
- National Institute of Biomedical Imaging and Bioengineering (NIBIB)
- National Institute of Children's Health (NICHD)
- National Institute of Diabetes and Digestive and Kidney Diseases (NIDDK)
- National Institute of Environmental Health Sciences (NIEHS)
- National Institute of Mental Health (NIMH)
- National Institute of Neurological Disorders and Stroke (NINDS)
- National Institute of Nursing Research (NINR)
- National Institute of Occupational Safety and Health (NIOSH)
- National Institute on Aging (NIA)
- National Institute on Alcohol Abuse and Alcoholism (NIAAA)
- National Institute on Deafness and Other Communication Disorders (NIDCD)
- National Institute on Drug Abuse (NIDA)
- National Institutes of Health (NIH)
- National Library of Medicine (NLM)
- National Program of Cancer Registries (NPCR)
- Occupational Safety and Health Administration (OSHA)
- Pan American Health Organization (PAHO)
- Point of Service (POS)
- Preferred Provider Organization (PPO)
- Public Health
- Substance Abuse and Mental Health Services Administration (SAMHSA)
- United Nations Children's Fund (UNICEF)
- United Network for Organ Sharing (UNOS)
- United States Public Health Service
- World Health Organization (WHO)
- Women's Health
- Abortion
- AIDS
- AIDS and Pregnancy
- Birth Control/Contraception
- Bisexual
- Breast Cancer
- Breast Feeding
- Breast Implants/Breast Reconstruction
- Cervical Cancer
- Climacteric
- Diabetes and Pregnancy
- Doula
- Estrogen Replacement Therapy (ERT)
- Female Circumcision
- Gynecologist
- Gynecology
- Heterosexual
- High Risk Pregnancy
- Hormone Replacement Therapy
- Hormones
- Infertility
- Lesbian
- Menopause
- Menstruation and Premenstrual Syndrome
- Midwife
- Obstetric Fistula
- Obstetrician/Gynecologist
- Obstetrics
- Osteoporosis
- Ovarian Cancer
- Postpartum Depression
- Preeclampsia
- Pregnancy
- Pregnancy and Substance Abuse
- Pregnancy Loss
- Reproductive Health (General)
- Smoking and Pregnancy
- Teenage Pregnancy
- Urinary Tract Infections
- Uterine Cancer
- Uterine Diseases
- Vaginal Cancer
- Vaginal Diseases
- Vulvar Cancer
- Women's Health (General)
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