Classification
610 - Medicine & health
600 - Technology
2
170 - Ethics
1
304 - Factors affecting social behavior
1
305 - Social groups
1
330 - Economics
1
361 - Social problems & social welfare in general
1
362 - Social welfare problems & services
1
363 - Other social problems & services
1
380 - Commerce, communications & transportation
1
576 - Genetics & evolution
1