Classification
579 - Microorganisms, fungi & algae
161
616 - Diseases
36
571 - Physiology & related subjects
20
572 - Biochemistry
18
576 - Genetics & evolution
16
660 - Chemical engineering
16
570 - Life sciences; biology
11
610 - Medicine & health
8
630 - Agriculture & related technologies
8
577 - Ecology
4
580 - Plants (Botany)
4
004 - Data processing & computer science
2
333 - Economics of land & energy
2
363 - Other social problems & services
2
551 - Geology, hydrology & meteorology
2
519 - Probabilities & applied mathematics
1
547 - Organic chemistry
1
581 - Specific topics in natural history
1
592 - Invertebrates
1
612 - Human physiology
1
615 - Pharmacology & therapeutics
1
628 - Sanitary & municipal engineering
1
631 - Techniques, equipment & materials
1
632 - Plant injuries, diseases & pests
1
664 - Food technology
1