Classification
616 - Diseases
985
610 - Medicine & health
143
617 - Surgery & related medical specialties
114
615 - Pharmacology & therapeutics
44
618 - Gynecology, obstetrics, pediatrics & geriatrics
17
571 - Physiology & related subjects
14
614 - Incidence & prevention of disease
12
700 - The arts; fine & decorative arts
10
140 - Specific philosophical schools
7
330 - Economics
5
570 - Life sciences; biology
4
580 - Plants (Botany)
4
611 - Human anatomy, cytology & histology
4
613 - Personal health & safety
4
000 - Computer science, information & general works
3
540 - Chemistry & allied sciences
3
579 - Microorganisms, fungi & algae
3
612 - Human physiology
3
636 - Animal husbandry
3
006 - Special computer methods
2
333 - Economics of land & energy
2
541 - Physical chemistry
2
572 - Biochemistry
2
600 - Technology
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
590 - Animals (Zoology)
1
599 - Mammals
1
620 - Engineering & allied operations
1