Classification
610 - Medicine & health
71
100 - Philosophy & psychology
5
363 - Other social problems & services
5
370 - Education
4
380 - Commerce, communications & transportation
3
361 - Social problems & social welfare in general
2
612 - Human physiology
2
000 - Computer science, information & general works
1
330 - Economics
1
333 - Economics of land & energy
1
700 - The arts; fine & decorative arts
1