Subjects: MEDICAL research; CARDIOVASCULAR diseases risk factors; CORONARY diseaseUNITED States
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Subjects: MEDICAL research; ANGIOGRAPHY; PULMONARY embolism
Subjects: MEDICAL research; TOTAL knee replacement; OSTEOARTHRITISUNITED States
Subjects: INFLUENZA viruses; INFLUENZA A virus; DRUG resistanceUNITED States
Subjects: PAPILLOMAVIRUSES; MEDICAL research; WOMEN'S healthUNITED States
Subjects: THYROID cancer; MEDICAL research; STATISTICAL methods in health surveysUNITED States
Subjects: REFRACTIVE errors; MYOPIA; HYPEROPIAUNITED States
Subjects: HEALTH surveys; BODY weight; MEDICAL researchUNITED States
Subjects: PUBLIC health; VIRUSES; INFECTIOUS disease transmissionUNITED StatesWORLD Health Organization
Subjects: HOSPITAL care of older people; PNEUMONIA treatment; VACCINATION