Classification
610 - Medicine & health
228
330 - Economics
6
700 - The arts; fine & decorative arts
6
100 - Philosophy & psychology
4
615 - Pharmacology & therapeutics
4
363 - Other social problems & services
2
380 - Commerce, communications & transportation
2
400 - Language
2
576 - Genetics & evolution
2
800 - Literature & rhetoric
2
540 - Chemistry & allied sciences
1