Classification
617 - Surgery & related medical specialties
3,630
616 - Diseases
2,288
610 - Medicine & health
772
700 - The arts; fine & decorative arts
134
618 - Gynecology, obstetrics, pediatrics & geriatrics
104
580 - Plants (Botany)
68
571 - Physiology & related subjects
61
612 - Human physiology
57
615 - Pharmacology & therapeutics
54
620 - Engineering & allied operations
53
600 - Technology
51
570 - Life sciences; biology
37
000 - Computer science, information & general works
35
140 - Specific philosophical schools
33
900 - History & geography
25
333 - Economics of land & energy
24
363 - Other social problems & services
23
330 - Economics
18
380 - Commerce, communications & transportation
18
611 - Human anatomy, cytology & histology
18
320 - Political science
15
614 - Incidence & prevention of disease
14
370 - Education
13
613 - Personal health & safety
13
540 - Chemistry & allied sciences
12
100 - Philosophy & psychology
9
340 - Law
9
344 - Labor, social, education & cultural law
9
576 - Genetics & evolution
8
004 - Data processing & computer science
7
414 - Phonology & phonetics
6
500 - Natural sciences & mathematics
6
629 - Other branches of engineering
6
006 - Special computer methods
5
170 - Ethics
5
304 - Factors affecting social behavior
5
514 - Topology
5
820 - English & Old English literatures
5
338 - Production
4
350 - Public administration & military science
4
658 - General management
4
770 - Photography, photographs & computer art
4
300 - Social sciences
3
306 - Culture & institutions
3
530 - Physics
3
581 - Specific topics in natural history
3
621 - Applied physics
3
660 - Chemical engineering
3
720 - Architecture
3
005 - Computer programming, programs & data
2
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