Classification
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616 - Diseases
3
660 - Chemical engineering
3
040 - [Unassigned]
2
301 - Sociology & anthropology
2
338 - Production
2
363 - Other social problems & services
2
532 - Fluid mechanics; liquid mechanics
2
533 - Gas mechanics
2
540 - Chemistry & allied sciences
2
542 - Techniques, equipment & materials
2
546 - Inorganic chemistry
2
572 - Biochemistry
2
577 - Ecology
2
107 - Education, research & related topics
1
150 - Psychology
1
160 - Logic
1
307 - Communities
1
410 - Linguistics
1
418 - Standard usage & applied linguistics
1
507 - Education, research & related topics
1
547 - Organic chemistry
1
549 - Mineralogy
1
613 - Personal health & safety
1
614 - Incidence & prevention of disease
1
627 - Hydraulic engineering
1
628 - Sanitary & municipal engineering
1
690 - Buildings
1