Diseases 26 Anatomy 21 Phenomena and Processes 17 Chemicals and Drugs 16 Analytical, Diagnostic and Therapeutic Techniques and Equipment 7 Health Care 6 Organisms 5 Psychiatry and Psychology 4 Publication Characteristics 4 Anthropology, Education, Sociology and Social Phenomena 3 Disciplines and Occupations 2 Technology, Industry, Agriculture 2 Geographicals 1 Humanities 1 Information Science 1 Named Groups 1