History, 20th Century history 558 History 456 History, 19th Century 196 History, 21st Century 105 Medicine 68 Health Policy 49 más ... Medical care 47 Public health 45 Public Health 44 Medical policy 39 Social aspects 39 prevention & control 37 Physicians 35 Politics 32 Delivery of Health Care 30 Psychiatry 26 Research 26 Social conditions 26 Women 26 Health and hygiene 25 therapy 24 legislation & jurisprudence 23 psychology 23 Government policy 22 Humanities 22 Mental Disorders 22 history (discipline) 22 humanities 22 Eugenics 21 menos ...