Classification
616 - Diseases
156
610 - Medicine & health
146
004 - Data processing & computer science
78
780 - Music
65
006 - Special computer methods
61
617 - Surgery & related medical specialties
51
005 - Computer programming, programs & data
47
621 - Applied physics
42
330 - Economics
35
658 - General management
31
611 - Human anatomy, cytology & histology
27
620 - Engineering & allied operations
27
629 - Other branches of engineering
26
320 - Political science
24
530 - Physics
23
900 - History & geography
21
518 - Numerical analysis
18
615 - Pharmacology & therapeutics
18
338 - Production
17
618 - Gynecology, obstetrics, pediatrics & geriatrics
15
300 - Social sciences
14
612 - Human physiology
14
150 - Psychology
13
003 - Systems
12
519 - Probabilities & applied mathematics
12
510 - Mathematics
11
370 - Education
10
540 - Chemistry & allied sciences
10
614 - Incidence & prevention of disease
10
304 - Factors affecting social behavior
9
306 - Culture & institutions
9
343 - Military, tax, trade & industrial law
9
571 - Physiology & related subjects
9
572 - Biochemistry
9
700 - The arts; fine & decorative arts
9
100 - Philosophy & psychology
8
500 - Natural sciences & mathematics
8
539 - Modern physics
8
302 - Social interaction
7
340 - Law
7
303 - Social processes
6
305 - Social groups
6
332 - Financial economics
6
515 - Analysis
6
541 - Physical chemistry
6
543 - Analytical chemistry
6
570 - Life sciences; biology
6
641 - Food & drink
6
664 - Food technology
6
001 - Knowledge
5
more ...