610 - Medicine & health 330 - Economics 17 363 - Other social problems & services 15 700 - The arts; fine & decorative arts 11 380 - Commerce, communications & transportation 6 100 - Philosophy & psychology 5 more ... 576 - Genetics & evolution 5 361 - Social problems & social welfare in general 4 370 - Education 4 551 - Geology, hydrology & meteorology 4 580 - Plants (Botany) 4 600 - Technology 4 620 - Engineering & allied operations 4 630 - Agriculture & related technologies 3 333 - Economics of land & energy 2 340 - Law 2 362 - Social welfare problems & services 2 612 - Human physiology 2 800 - Literature & rhetoric 2 900 - History & geography 2 000 - Computer science, information & general works 1 140 - Specific philosophical schools 1 170 - Ethics 1 304 - Factors affecting social behavior 1 338 - Production 1 590 - Animals (Zoology) 1 613 - Personal health & safety 1 616 - Diseases 1 658 - General management 1 660 - Chemical engineering 1 see all ... less ...

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