Classification
610 - Medicine & health
132
330 - Economics
11
600 - Technology
8
616 - Diseases
5
100 - Philosophy & psychology
4
700 - The arts; fine & decorative arts
4
140 - Specific philosophical schools
1
361 - Social problems & social welfare in general
1
362 - Social welfare problems & services
1
370 - Education
1
612 - Human physiology
1
618 - Gynecology, obstetrics, pediatrics & geriatrics
1