| R.500 | Europarådet |
| R.501 | Konventioner og aftaler |
| European Agreement on the Exchange of Therapeutic Substances of Human Origin (ETS no. 26, 1958). European Agreement on the Exchange of Blood Grouping Reagents (ETS no. 39, 1962). European Agreement on the Exchange of Tissue-Typing Reagents (ETS no. 84, 1974). |