Classification
570 - Life sciences; biology
292
610 - Medicine & health
135
616 - Diseases
23
571 - Physiology & related subjects
19
572 - Biochemistry
13
540 - Chemistry & allied sciences
12
611 - Human anatomy, cytology & histology
12
614 - Incidence & prevention of disease
11
615 - Pharmacology & therapeutics
11
599 - Mammals
9
344 - Labor, social, education & cultural law
7
580 - Plants (Botany)
6
590 - Animals (Zoology)
6
620 - Engineering & allied operations
6
577 - Ecology
5
660 - Chemical engineering
5
551 - Geology, hydrology & meteorology
4
579 - Microorganisms, fungi & algae
4
612 - Human physiology
4
617 - Surgery & related medical specialties
4
519 - Probabilities & applied mathematics
3
541 - Physical chemistry
3
547 - Organic chemistry
3
110 - Metaphysics
2
301 - Sociology & anthropology
2
507 - Education, research & related topics
2
520 - Astronomy & allied sciences
2
576 - Genetics & evolution
2
613 - Personal health & safety
2
618 - Gynecology, obstetrics, pediatrics & geriatrics
2
621 - Applied physics
2
120 - Epistemology, causation & humankind
1
128 - Humankind
1
306 - Culture & institutions
1
330 - Economics
1
333 - Economics of land & energy
1
338 - Production
1
343 - Military, tax, trade & industrial law
1
346 - Private law
1
353 - Specific fields of public administration
1
370 - Education
1
500 - Natural sciences & mathematics
1
501 - Philosophy & theory
1
509 - Historical, geographic & persons treatment
1
514 - Topology
1
530 - Physics
1
531 - Classical mechanics; solid mechanics
1
546 - Inorganic chemistry
1
550 - Earth sciences
1
573 - Specific physiological systems in animals
1
more ...