Classification
006 - Special computer methods
003 - Systems
437
658 - General management
228
535 - Light & infrared & ultraviolet phenomena
48
617 - Surgery & related medical specialties
44
650 - Management & auxiliary services
16
004 - Data processing & computer science
15
618 - Gynecology, obstetrics, pediatrics & geriatrics
11
530 - Physics
9
547 - Organic chemistry
9
616 - Diseases
6
005 - Computer programming, programs & data
5
303 - Social processes
3
155 - Differential & developmental psychology
2
657 - Accounting
2