Classification
610 - Medicine & health
612 - Human physiology
4
380 - Commerce, communications & transportation
3
363 - Other social problems & services
2
700 - The arts; fine & decorative arts
2
330 - Economics
1
370 - Education
1
394 - General customs
1
613 - Personal health & safety
1
630 - Agriculture & related technologies
1
658 - General management
1