Classification
571 - Physiology & related subjects
45
616 - Diseases
32
570 - Life sciences; biology
27
572 - Biochemistry
25
610 - Medicine & health
22
660 - Chemical engineering
14
576 - Genetics & evolution
13
579 - Microorganisms, fungi & algae
12
580 - Plants (Botany)
11
599 - Mammals
11
611 - Human anatomy, cytology & histology
11
612 - Human physiology
9
615 - Pharmacology & therapeutics
9
000 - Computer science, information & general works
7
333 - Economics of land & energy
7
581 - Specific topics in natural history
6
620 - Engineering & allied operations
6
630 - Agriculture & related technologies
6
631 - Techniques, equipment & materials
6
700 - The arts; fine & decorative arts
6
614 - Incidence & prevention of disease
4
140 - Specific philosophical schools
3
363 - Other social problems & services
3
380 - Commerce, communications & transportation
3
577 - Ecology
3
592 - Invertebrates
3
595 - Arthropods
3
100 - Philosophy & psychology
2
540 - Chemistry & allied sciences
2
547 - Organic chemistry
2
600 - Technology
2
005 - Computer programming, programs & data
1
006 - Special computer methods
1
302 - Social interaction
1
304 - Factors affecting social behavior
1
331 - Labor economics
1
381 - Commerce
1
500 - Natural sciences & mathematics
1
550 - Earth sciences
1
634 - Orchards, fruits & forestry
1