http://www.loc.gov/mods/v3 http://www.loc.gov/standards/mods/v3/mods-3-2.xsd
1. General physiology -- 2. Blood -- 3. Digestive system -- 4. Respiratory system -- 5. Cardiovascular system -- 6. Endocrinology -- 7. Metabolism -- 8. Kidney and body fluids -- 9. Skeletal muscles,exercise physiology,smooth muscles -- 10. Nervous system