44.00 medicine: general 36
401(k) plans 26
44.91 psychiatry, psychopathology 26
44.90 neurology 25
42.15 cytology, cell biology and cell physiology 22
42.60 zoology: general 17
44.85 cardiology 17
42.00 biology: general 16
42.40 botany: general 15
44.64 radiology 15
42.13 molecular biology 14
44.42 pharmacy, pharmaceuticals 14
42.90 ecology: general 13
42.30 microbiology 12
42.75 insects 11
44.10 public health service: general 11
42.21 evolution 10
44.48 medical genetics 10
44.81 neoplasms, tumors 10
42nd Psalm 9
44.01 history of medicine 9
44.75 infectious diseases, parasitic diseases 9
44.86 haematology 9
4-H clubs 8
44.38 pharmacology (medicine) 8
44.83 rheumatology, orthopedics 8
44.88 urology 8
42.11 biomathematics 7
44.31 medical physics 7
44.78 immunological diseases 7
44.92 gynecology and obstetrics 7
44.94 otorhinolaryngology 7
42.03 methods and techniques of biology 6
42.05 natural history 6
42.42 plant physiology 6
42.63 animal physiology 6
44.33 medical chemistry 6
44.46 clinical pathology 6
44.67 pediatrics 6
44.84 thorax 6
42.12 biophysics 5
42.85 physical anthropology 5
46th Psalm 5
48.50 plant breeding: general 5
42.17 general physiology 4
42.23 embryology and developmental biology 4
42.66 ethology 4
42.95 nature conservation 4
44.04 teaching, profession and organizations of medicine 4
44.11 preventive medicine 4
44.43 medical microbiology 4
44.87 gastroenterology 4
44.95 ophthalmology 4
42.10 theoretical biology 3
42.20 genetics (biology) 3
42.65 zoogeography, animal ecology 3
43.02 philosophy of environmental science 3
43.30 environmental and nature policy: general 3
43.33 natural resources management 3
44.02 philosophy and ethics of medicine 3
44.12 industrial medicine, occupational health service 3
44.35 histology (medicine) 3
44.47 pathology (medicine) 3
44.52 medical therapy 3
44.62 general practice 3
44.65 surgery (medicine) 3
44.68 gerontology, geriatrics 3
44.72 forensic medicine 3
46.00 veterinary medicine: general 3
48.63 economic zoology 3
4QInstruction 3
42.02 philosophy and theory of biology 2
42.14 radiobiology 2
42.16 cell morphology 2
42.43 plant genetics 2
42.83 birds 2
42.92 hydrobiology 2
42.94 marine biology 2
43.00 environmental science: general 2
43.31 nature and landscape conservation 2
43.47 global environmental themes 2
44.06 medical sociology 2
44.17 intramural health care, hospital care 2
44.21 nutrition 2
44.32 medical mathematics, medical statistics 2
44.37 physiology (medicine) 2
44.59 diagnostic and therapy: other 2
44.60 medicine: specialisms: general 2
44.77 metabolic diseases 2
44.89 endocrinology (medicine) 2
44.96 dentistry 2
45th Psalm 2
46.90 laboratory animal science 2
47th Psalm 2
48.00 agricultural science: general 2
48.40 forestry: general 2
48.54 phytopathology 2
4-H clubs - United States 1
41st Psalm 1
42.04 teaching, profession and organizations of biology 1