Classification
616 - Diseases
284
617 - Surgery & related medical specialties
106
571 - Physiology & related subjects
47
610 - Medicine & health
38
570 - Life sciences; biology
37
700 - The arts; fine & decorative arts
25
600 - Technology
16
615 - Pharmacology & therapeutics
14
620 - Engineering & allied operations
13
540 - Chemistry & allied sciences
9
363 - Other social problems & services
8
140 - Specific philosophical schools
7
333 - Economics of land & energy
7
900 - History & geography
7
000 - Computer science, information & general works
6
500 - Natural sciences & mathematics
5
572 - Biochemistry
4
304 - Factors affecting social behavior
3
330 - Economics
3
380 - Commerce, communications & transportation
3
580 - Plants (Botany)
3
320 - Political science
2
368 - Insurance
2
370 - Education
2
612 - Human physiology
2
613 - Personal health & safety
2
618 - Gynecology, obstetrics, pediatrics & geriatrics
2
100 - Philosophy & psychology
1
414 - Phonology & phonetics
1
574 - [Unassigned]
1
576 - Genetics & evolution
1
577 - Ecology
1
629 - Other branches of engineering
1
630 - Agriculture & related technologies
1
660 - Chemical engineering
1