Classification
616 - Diseases
40
610 - Medicine & health
17
363 - Other social problems & services
7
614 - Incidence & prevention of disease
6
613 - Personal health & safety
5
615 - Pharmacology & therapeutics
5
158 - Applied psychology
3
370 - Education
3
500 - Natural sciences & mathematics
3
100 - Philosophy & psychology
2
330 - Economics
2
333 - Economics of land & energy
2
520 - Astronomy & allied sciences
2
600 - Technology
2
620 - Engineering & allied operations
2
629 - Other branches of engineering
2
700 - The arts; fine & decorative arts
2
006 - Special computer methods
1
170 - Ethics
1
300 - Social sciences
1
301 - Sociology & anthropology
1
340 - Law
1
361 - Social problems & social welfare in general
1
540 - Chemistry & allied sciences
1
551 - Geology, hydrology & meteorology
1
579 - Microorganisms, fungi & algae
1
612 - Human physiology
1
617 - Surgery & related medical specialties
1
630 - Agriculture & related technologies
1
658 - General management
1