Classification
616 - Diseases
98
610 - Medicine & health
20
614 - Incidence & prevention of disease
8
615 - Pharmacology & therapeutics
8
613 - Personal health & safety
7
363 - Other social problems & services
6
617 - Surgery & related medical specialties
6
158 - Applied psychology
3
370 - Education
3
500 - Natural sciences & mathematics
3
612 - Human physiology
3
670 - Manufacturing
3
333 - Economics of land & energy
2
344 - Labor, social, education & cultural law
2
520 - Astronomy & allied sciences
2
620 - Engineering & allied operations
2
629 - Other branches of engineering
2
658 - General management
2
006 - Special computer methods
1
100 - Philosophy & psychology
1
170 - Ethics
1
330 - Economics
1
340 - Law
1
361 - Social problems & social welfare in general
1
571 - Physiology & related subjects
1
579 - Microorganisms, fungi & algae
1
599 - Mammals
1
600 - Technology
1
611 - Human anatomy, cytology & histology
1
628 - Sanitary & municipal engineering
1
700 - The arts; fine & decorative arts
1