Research 229 Diseases 200 Medicine 189 History 160 Zeitschrift 121 Mathematics 102 Biology 87 Pe ́riodiques 84 Social sciences 84 Study and teaching 84 Education 82 Science 78 Psychology 76 Law 71 Surgery 66 Cancer 64 Politics and government 59 Neoplasms 55 Online-Ressource 55 Philosophy 54 Treatment 50 Social aspects 49 Public health 46 Agriculture 45 Biotechnology 45 Historia 45 Law and legislation 44 Neurology 44 Psychiatry 44 Technology 44