Classification
610 - Medicine & health
188
616 - Diseases
159
615 - Pharmacology & therapeutics
87
363 - Other social problems & services
65
571 - Physiology & related subjects
49
572 - Biochemistry
31
614 - Incidence & prevention of disease
21
540 - Chemistry & allied sciences
20
333 - Economics of land & energy
18
613 - Personal health & safety
16
580 - Plants (Botany)
15
140 - Specific philosophical schools
14
300 - Social sciences
13
577 - Ecology
13
620 - Engineering & allied operations
13
700 - The arts; fine & decorative arts
12
500 - Natural sciences & mathematics
11
570 - Life sciences; biology
10
636 - Animal husbandry
10
664 - Food technology
10
641 - Food & drink
9
001 - Knowledge
8
541 - Physical chemistry
8
000 - Computer science, information & general works
6
547 - Organic chemistry
5
579 - Microorganisms, fungi & algae
5
600 - Technology
5
612 - Human physiology
5
630 - Agriculture & related technologies
5
660 - Chemical engineering
5
330 - Economics
4
543 - Analytical chemistry
4
551 - Geology, hydrology & meteorology
4
576 - Genetics & evolution
4
050 - General serial publications
3
304 - Factors affecting social behavior
3
380 - Commerce, communications & transportation
3
611 - Human anatomy, cytology & histology
3
617 - Surgery & related medical specialties
3
618 - Gynecology, obstetrics, pediatrics & geriatrics
3
621 - Applied physics
3
628 - Sanitary & municipal engineering
3
005 - Computer programming, programs & data
2
006 - Special computer methods
2
338 - Production
2
519 - Probabilities & applied mathematics
2
560 - Paleontology; paleozoology
2
590 - Animals (Zoology)
2
599 - Mammals
2
720 - Architecture
2
more ...