| 424 / | HD | DRUG, BIO-AFFECTING AND BODY TREATING COMPOSITIONS |
| 520 | DF | EXTRACT, BODY FLUID, OR CELLULAR MATERIAL OF UNDETERMINED CONSTITUTION DERIVED FROM ANIMAL IS ACTIVE INGREDIENT {21} |
| 562 | DF | .~ Endocrine system, other than the thymus gland (e.g., parathyroid gland, etc.) {3} |
| 568 | | .~.~ Thyroid gland |