Classification
610 - Medicine & health
73
362 - Social welfare problems & services
19
330 - Economics
11
320 - Political science
9
700 - The arts; fine & decorative arts
5
000 - Computer science, information & general works
3
613 - Personal health & safety
3
658 - General management
3
140 - Specific philosophical schools
2
300 - Social sciences
2
368 - Insurance
2
500 - Natural sciences & mathematics
2
600 - Technology
2
001 - Knowledge
1
302 - Social interaction
1
305 - Social groups
1
338 - Production
1
361 - Social problems & social welfare in general
1
363 - Other social problems & services
1
380 - Commerce, communications & transportation
1
381 - Commerce
1
510 - Mathematics
1
519 - Probabilities & applied mathematics
1
570 - Life sciences; biology
1
612 - Human physiology
1
614 - Incidence & prevention of disease
1
620 - Engineering & allied operations
1