Classification
616 - Diseases
486
617 - Surgery & related medical specialties
195
612 - Human physiology
75
610 - Medicine & health
54
615 - Pharmacology & therapeutics
54
571 - Physiology & related subjects
52
572 - Biochemistry
49
001 - Knowledge
23
300 - Social sciences
23
577 - Ecology
23
006 - Special computer methods
22
613 - Personal health & safety
19
618 - Gynecology, obstetrics, pediatrics & geriatrics
18
614 - Incidence & prevention of disease
16
150 - Psychology
14
630 - Agriculture & related technologies
10
620 - Engineering & allied operations
7
338 - Production
6
611 - Human anatomy, cytology & histology
6
570 - Life sciences; biology
5
580 - Plants (Botany)
5
634 - Orchards, fruits & forestry
5
005 - Computer programming, programs & data
4
061 - Organizations in North America
4
155 - Differential & developmental psychology
4
340 - Law
4
301 - Sociology & anthropology
3
331 - Labor economics
3
363 - Other social problems & services
3
590 - Animals (Zoology)
3
641 - Food & drink
3
664 - Food technology
3
003 - Systems
2
330 - Economics
2
332 - Financial economics
2
333 - Economics of land & energy
2
500 - Natural sciences & mathematics
2
511 - General principles of mathematics
2
520 - Astronomy & allied sciences
2
547 - Organic chemistry
2
550 - Earth sciences
2
551 - Geology, hydrology & meteorology
2
573 - Specific physiological systems in animals
2
576 - Genetics & evolution
2
636 - Animal husbandry
2
660 - Chemical engineering
2
111 - Ontology
1
158 - Applied psychology
1
304 - Factors affecting social behavior
1
306 - Culture & institutions
1
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