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