Zeitschrift 11 Mathematics 9 Diseases 8 Surgery 8 Mathe ́matiques 7 Psychology 7 History 6 Physics 6 Science 6 Education 5 Pe ́riodiques 5 Publications pe ́riodiques 5 Religion 5 Study and teaching 5 Biochemistry 4 Biology 4 Chemistry 4 Histoire 4 Management 4 Medicine 4 Philosophy 4 Physique 4 Plants, Protection of 4 Research 4 Social sciences 4 42.15 cytology, cell biology and cell physiology 3 Anthropology 3 Archeologie 3 Biotechnology 3 Celbiologie 3