History 221 Medicina 126 General 125 History and criticism 100 Politics and government 98 Social conditions 89 Ciencias sociales 88 more ... Medical 86 Education 81 Educación 78 Human rights 70 Economic conditions 68 Motion picture plays, Spanish 67 Social aspects 64 Historia 56 Oncology 49 Periodicals 49 Social sciences 49 Criticism and interpretation 48 Publicaciones periódicas 47 Philosophy 45 Social Science 45 Trials, litigation, etc 45 Management 43 Administración de justicia 42 Research 42 Study and teaching 41 Violación de los derechos humanos 41 Condiciones económicas 40 Industrial management 40 less ...