Classification
616 - Diseases
964
571 - Physiology & related subjects
804
610 - Medicine & health
85
572 - Biochemistry
49
615 - Pharmacology & therapeutics
37
061 - Organizations in North America
26
612 - Human physiology
22
570 - Life sciences; biology
19
660 - Chemical engineering
14
006 - Special computer methods
8
579 - Microorganisms, fungi & algae
7
620 - Engineering & allied operations
7
547 - Organic chemistry
6
614 - Incidence & prevention of disease
6
005 - Computer programming, programs & data
4
519 - Probabilities & applied mathematics
4
613 - Personal health & safety
4
000 - Computer science, information & general works
3
057 - Serials in Slavic languages
3
541 - Physical chemistry
3
576 - Genetics & evolution
3
577 - Ecology
3
617 - Surgery & related medical specialties
3
333 - Economics of land & energy
2
500 - Natural sciences & mathematics
2
515 - Analysis
2
530 - Physics
2
543 - Analytical chemistry
2
546 - Inorganic chemistry
2
590 - Animals (Zoology)
2
621 - Applied physics
2
700 - The arts; fine & decorative arts
2
003 - Systems
1
174 - Occupational ethics
1
301 - Sociology & anthropology
1
518 - Numerical analysis
1
523 - Specific celestial bodies & phenomena
1
618 - Gynecology, obstetrics, pediatrics & geriatrics
1
630 - Agriculture & related technologies
1