Classification
612 - Human physiology
1,953
616 - Diseases
563
610 - Medicine & health
261
500 - Natural sciences & mathematics
224
571 - Physiology & related subjects
198
615 - Pharmacology & therapeutics
134
617 - Surgery & related medical specialties
129
333 - Economics of land & energy
90
006 - Special computer methods
89
153 - Mental processes & intelligence
64
572 - Biochemistry
60
100 - Philosophy & psychology
55
590 - Animals (Zoology)
45
700 - The arts; fine & decorative arts
44
570 - Life sciences; biology
39
150 - Psychology
38
000 - Computer science, information & general works
35
576 - Genetics & evolution
34
611 - Human anatomy, cytology & histology
34
140 - Specific philosophical schools
33
004 - Data processing & computer science
31
530 - Physics
28
400 - Language
26
573 - Specific physiological systems in animals
25
128 - Humankind
24
380 - Commerce, communications & transportation
24
658 - General management
23
620 - Engineering & allied operations
22
152 - Perception, movement, emotions & drives
21
621 - Applied physics
19
519 - Probabilities & applied mathematics
17
005 - Computer programming, programs & data
16
155 - Differential & developmental psychology
15
330 - Economics
15
170 - Ethics
14
370 - Education
14
600 - Technology
14
301 - Sociology & anthropology
13
580 - Plants (Botany)
13
591 - Specific topics in natural history
12
629 - Other branches of engineering
12
579 - Microorganisms, fungi & algae
11
613 - Personal health & safety
11
660 - Chemical engineering
11
780 - Music
11
300 - Social sciences
10
304 - Factors affecting social behavior
10
363 - Other social problems & services
10
599 - Mammals
10
900 - History & geography
10
more ...