Classification
616 - Diseases
127
610 - Medicine & health
99
617 - Surgery & related medical specialties
31
330 - Economics
12
362 - Social welfare problems & services
12
618 - Gynecology, obstetrics, pediatrics & geriatrics
12
340 - Law
11
300 - Social sciences
10
344 - Labor, social, education & cultural law
10
614 - Incidence & prevention of disease
9
613 - Personal health & safety
7
615 - Pharmacology & therapeutics
7
306 - Culture & institutions
6
320 - Political science
6
158 - Applied psychology
4
361 - Social problems & social welfare in general
4
364 - Criminology
4
301 - Sociology & anthropology
3
612 - Human physiology
3
150 - Psychology
2
305 - Social groups
2
600 - Technology
2
658 - General management
2
001 - Knowledge
1
050 - General serial publications
1
061 - Organizations in North America
1
100 - Philosophy & psychology
1
174 - Occupational ethics
1
307 - Communities
1
338 - Production
1
343 - Military, tax, trade & industrial law
1
345 - Criminal law
1
353 - Specific fields of public administration
1
370 - Education
1
621 - Applied physics
1
650 - Management & auxiliary services
1
780 - Music
1