Classification
519 - Probabilities & applied mathematics
136
614 - Incidence & prevention of disease
16
610 - Medicine & health
12
570 - Life sciences; biology
10
353 - Specific fields of public administration
7
616 - Diseases
6
615 - Pharmacology & therapeutics
5
577 - Ecology
4
630 - Agriculture & related technologies
4
613 - Personal health & safety
3
330 - Economics
2
333 - Economics of land & energy
2
641 - Food & drink
2
658 - General management
2
664 - Food technology
2
006 - Special computer methods
1
025 - Library operations
1
150 - Psychology
1
371 - Schools & their activities; special education
1
510 - Mathematics
1
516 - Geometry
1
530 - Physics
1
599 - Mammals
1
611 - Human anatomy, cytology & histology
1
617 - Surgery & related medical specialties
1
634 - Orchards, fruits & forestry
1