Classification
616 - Diseases
2,153
612 - Human physiology
641
617 - Surgery & related medical specialties
454
610 - Medicine & health
375
615 - Pharmacology & therapeutics
189
618 - Gynecology, obstetrics, pediatrics & geriatrics
79
571 - Physiology & related subjects
48
700 - The arts; fine & decorative arts
37
150 - Psychology
31
500 - Natural sciences & mathematics
19
570 - Life sciences; biology
19
333 - Economics of land & energy
18
611 - Human anatomy, cytology & histology
17
600 - Technology
16
000 - Computer science, information & general works
15
140 - Specific philosophical schools
14
580 - Plants (Botany)
14
006 - Special computer methods
13
100 - Philosophy & psychology
13
363 - Other social problems & services
9
370 - Education
9
572 - Biochemistry
8
620 - Engineering & allied operations
8
900 - History & geography
8
579 - Microorganisms, fungi & algae
7
330 - Economics
6
530 - Physics
6
540 - Chemistry & allied sciences
6
155 - Differential & developmental psychology
5
614 - Incidence & prevention of disease
5
004 - Data processing & computer science
4
301 - Sociology & anthropology
4
304 - Factors affecting social behavior
4
320 - Political science
4
573 - Specific physiological systems in animals
4
576 - Genetics & evolution
4
613 - Personal health & safety
4
170 - Ethics
3
380 - Commerce, communications & transportation
3
401 - Philosophy & theory
3
621 - Applied physics
3
660 - Chemical engineering
3
780 - Music
3
005 - Computer programming, programs & data
2
128 - Humankind
2
345 - Criminal law
2
414 - Phonology & phonetics
2
629 - Other branches of engineering
2
636 - Animal husbandry
2
770 - Photography, photographs & computer art
2
more ...