Classification
616 - Diseases
28
610 - Medicine & health
14
570 - Life sciences; biology
8
571 - Physiology & related subjects
6
579 - Microorganisms, fungi & algae
5
614 - Incidence & prevention of disease
5
613 - Personal health & safety
4
900 - History & geography
4
615 - Pharmacology & therapeutics
3
301 - Sociology & anthropology
2
306 - Culture & institutions
2
320 - Political science
2
338 - Production
2
612 - Human physiology
2
618 - Gynecology, obstetrics, pediatrics & geriatrics
2
140 - Specific philosophical schools
1
150 - Psychology
1
174 - Occupational ethics
1
300 - Social sciences
1
304 - Factors affecting social behavior
1
330 - Economics
1
333 - Economics of land & energy
1
361 - Social problems & social welfare in general
1
380 - Commerce, communications & transportation
1
518 - Numerical analysis
1
540 - Chemistry & allied sciences
1
547 - Organic chemistry
1
576 - Genetics & evolution
1
600 - Technology
1
617 - Surgery & related medical specialties
1
620 - Engineering & allied operations
1
636 - Animal husbandry
1
800 - Literature & rhetoric
1
809 - History, description & criticism
1
820 - English & Old English literatures
1