Medicine 918 Immunology 200 History of medicine 182 Public health & preventive medicine 152 Cardiovascular medicine 94 Neurology & clinical neurophysiology 77 Medicine: general issues 73 Oncology 71 Endocrinology 60 Psychiatry 60 Research & information: general 43 Veterinary medicine 40 Social & cultural history 35 Science: general issues 33 Biology, life sciences 31 Paediatric medicine 31 Society & social sciences 31 Dermatology 28 Ophthalmology 28 Clinical & internal medicine 25 European history 25 Humanities 22 Neurosciences 22 Complementary medicine 21 History 21 Medical sociology 21 Pharmacology 21 Urology & urogenital medicine 20 Medical genetics 19 Sociology 19