Classification
616 - Diseases
681
571 - Physiology & related subjects
187
572 - Biochemistry
127
570 - Life sciences; biology
120
610 - Medicine & health
106
612 - Human physiology
69
500 - Natural sciences & mathematics
57
660 - Chemical engineering
46
576 - Genetics & evolution
44
615 - Pharmacology & therapeutics
34
580 - Plants (Botany)
25
611 - Human anatomy, cytology & histology
22
618 - Gynecology, obstetrics, pediatrics & geriatrics
21
617 - Surgery & related medical specialties
19
579 - Microorganisms, fungi & algae
16
700 - The arts; fine & decorative arts
12
000 - Computer science, information & general works
10
613 - Personal health & safety
10
061 - Organizations in North America
9
599 - Mammals
9
140 - Specific philosophical schools
8
174 - Occupational ethics
7
301 - Sociology & anthropology
7
577 - Ecology
7
344 - Labor, social, education & cultural law
6
340 - Law
5
519 - Probabilities & applied mathematics
5
620 - Engineering & allied operations
5
170 - Ethics
4
300 - Social sciences
4
006 - Special computer methods
3
150 - Psychology
3
543 - Analytical chemistry
3
581 - Specific topics in natural history
3
614 - Incidence & prevention of disease
3
630 - Agriculture & related technologies
3
003 - Systems
2
333 - Economics of land & energy
2
547 - Organic chemistry
2
590 - Animals (Zoology)
2
592 - Invertebrates
2
634 - Orchards, fruits & forestry
2
152 - Perception, movement, emotions & drives
1
201 - Religious mythology & social theology
1
304 - Factors affecting social behavior
1
320 - Political science
1
337 - International economics
1
343 - Military, tax, trade & industrial law
1
360 - Social problems & services; associations
1
363 - Other social problems & services
1
more ...