Classification
616 - Diseases
71
571 - Physiology & related subjects
56
572 - Biochemistry
54
615 - Pharmacology & therapeutics
27
580 - Plants (Botany)
13
612 - Human physiology
13
001 - Knowledge
11
300 - Social sciences
11
611 - Human anatomy, cytology & histology
9
570 - Life sciences; biology
7
576 - Genetics & evolution
6
610 - Medicine & health
5
617 - Surgery & related medical specialties
4
541 - Physical chemistry
3
577 - Ecology
3
620 - Engineering & allied operations
3
634 - Orchards, fruits & forestry
3
150 - Psychology
2
155 - Differential & developmental psychology
2
306 - Culture & institutions
2
547 - Organic chemistry
2
590 - Animals (Zoology)
2
613 - Personal health & safety
2
333 - Economics of land & energy
1
363 - Other social problems & services
1
514 - Topology
1
515 - Analysis
1
560 - Paleontology; paleozoology
1
579 - Microorganisms, fungi & algae
1
591 - Specific topics in natural history
1
636 - Animal husbandry
1
641 - Food & drink
1
660 - Chemical engineering
1
664 - Food technology
1