Delivery of Health Care 18 Environment and Public Health Medical care 17 Patient Care 17 Public Health 15 Public health 15 public health 15 Anthropology, Education, Sociology and Social Phenomena 13 Social Sciences 13 Social sciences 13 social sciences 13 Sociology 10 sociology 10 HISTORY 9 Population Characteristics 9 History 7 Analytical, Diagnostic and Therapeutic Techniques and Equipment 6 Diseases 6 General 6 Health Care Economics and Organizations 6 Health Care Quality, Access, and Evaluation 6 Humanities 6 Investigative Techniques 6 Phenomena and Processes 6 Socioeconomic Factors 6 humanities 6 Demography 5 Disciplines and Occupations 5 Disease 5 Epidemiologic Measurements 5