Zeitschrift 65 Publications pe ́riodiques 38 History 31 Diseases 29 Research 28 Molecular Biology 16 Social aspects 16 Pe ́riodiques 15 Education 14 Study and teaching 14 Philosophy 12 Politics and government 12 Treatment 12 Biotechnology 11 Cancer 11 Microbiology 11 Recherche 11 Psychotherapy 10 Culture 9 Histoire 9 Law 9 Biochemistry 8 Civilization 8 Droit 8 Ecology 8 Mathematical models 8 Mathematics 8 Mental Disorders 8 Microbiologie 8 Neurology 8