Classification
610 - Medicine & health
275
330 - Economics
37
700 - The arts; fine & decorative arts
21
580 - Plants (Botany)
13
140 - Specific philosophical schools
9
100 - Philosophy & psychology
7
576 - Genetics & evolution
4
612 - Human physiology
4
800 - Literature & rhetoric
4
615 - Pharmacology & therapeutics
3
616 - Diseases
3
170 - Ethics
2
380 - Commerce, communications & transportation
2
540 - Chemistry & allied sciences
2
620 - Engineering & allied operations
2