Classification
610 - Medicine & health
197
616 - Diseases
184
900 - History & geography
130
617 - Surgery & related medical specialties
25
509 - Historical, geographic & persons treatment
23
100 - Philosophy & psychology
18
320 - Political science
15
300 - Social sciences
14
306 - Culture & institutions
13
170 - Ethics
12
614 - Incidence & prevention of disease
11
174 - Occupational ethics
8
571 - Physiology & related subjects
8
615 - Pharmacology & therapeutics
8
200 - Religion
7
540 - Chemistry & allied sciences
7
612 - Human physiology
7
618 - Gynecology, obstetrics, pediatrics & geriatrics
7
940 - History of Europe
7
140 - Specific philosophical schools
6
301 - Sociology & anthropology
6
500 - Natural sciences & mathematics
6
600 - Technology
6
330 - Economics
5
370 - Education
5
570 - Life sciences; biology
5
613 - Personal health & safety
5
361 - Social problems & social welfare in general
4
700 - The arts; fine & decorative arts
4
941 - British Isles
4
109 - Historical & collected persons treatment
3
150 - Psychology
3
333 - Economics of land & energy
3
340 - Law
3
344 - Labor, social, education & cultural law
3
363 - Other social problems & services
3
380 - Commerce, communications & transportation
3
576 - Genetics & evolution
3
580 - Plants (Botany)
3
581 - Specific topics in natural history
3
611 - Human anatomy, cytology & histology
3
155 - Differential & developmental psychology
2
325 - International migration & colonization
2
362 - Social welfare problems & services
2
501 - Philosophy & theory
2
551 - Geology, hydrology & meteorology
2
579 - Microorganisms, fungi & algae
2
620 - Engineering & allied operations
2
791 - Public performances
2
800 - Literature & rhetoric
2
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