Classification
530 - Physics
9
543 - Analytical chemistry
8
620 - Engineering & allied operations
8
616 - Diseases
4
548 - Crystallography
2
610 - Medicine & health
2
660 - Chemical engineering
2
362 - Social welfare problems & services
1
363 - Other social problems & services
1
531 - Classical mechanics; solid mechanics
1
540 - Chemistry & allied sciences
1
541 - Physical chemistry
1
547 - Organic chemistry
1
570 - Life sciences; biology
1
572 - Biochemistry
1
579 - Microorganisms, fungi & algae
1
580 - Plants (Botany)
1
615 - Pharmacology & therapeutics
1