Classification
617 - Surgery & related medical specialties
62
720 - Architecture
47
616 - Diseases
24
006 - Special computer methods
7
610 - Medicine & health
5
690 - Buildings
4
620 - Engineering & allied operations
3
000 - Computer science, information & general works
2
330 - Economics
2
333 - Economics of land & energy
2
380 - Commerce, communications & transportation
2
551 - Geology, hydrology & meteorology
2
700 - The arts; fine & decorative arts
2
800 - Literature & rhetoric
2
900 - History & geography
2
304 - Factors affecting social behavior
1
306 - Culture & institutions
1
320 - Political science
1
363 - Other social problems & services
1
414 - Phonology & phonetics
1
570 - Life sciences; biology
1
576 - Genetics & evolution
1
580 - Plants (Botany)
1
600 - Technology
1
621 - Applied physics
1