Classification
616 - Diseases
1,001
610 - Medicine & health
137
617 - Surgery & related medical specialties
120
615 - Pharmacology & therapeutics
49
571 - Physiology & related subjects
17
618 - Gynecology, obstetrics, pediatrics & geriatrics
17
614 - Incidence & prevention of disease
11
700 - The arts; fine & decorative arts
9
140 - Specific philosophical schools
6
330 - Economics
5
570 - Life sciences; biology
4
579 - Microorganisms, fungi & algae
4
580 - Plants (Botany)
4
611 - Human anatomy, cytology & histology
4
612 - Human physiology
4
613 - Personal health & safety
4
000 - Computer science, information & general works
3
540 - Chemistry & allied sciences
3
636 - Animal husbandry
3
006 - Special computer methods
2
333 - Economics of land & energy
2
541 - Physical chemistry
2
572 - Biochemistry
2
590 - Animals (Zoology)
2
600 - Technology
2
620 - Engineering & allied operations
2
150 - Psychology
1
304 - Factors affecting social behavior
1
320 - Political science
1
530 - Physics
1
531 - Classical mechanics; solid mechanics
1
543 - Analytical chemistry
1
576 - Genetics & evolution
1
581 - Specific topics in natural history
1
599 - Mammals
1