| organophosphat-kontamination | 1 | 1 |
| organophosphat | 1 | 2 |
| org | 1 | 1 |
| operation | 1 | 1 |
| onychodystrophie | 1 | 2 |
| oliver | 1 | 1 |
| ohrpolyp | 1 | 2 |
| ohrenfremdkörper | 1 | 1 |
| ohrenfremdkoerper | 1 | 1 |
| of | 1 | 2 |
| ocd | 1 | 2 |
| oberschenkelhals-osteopathie | 1 | 1 |
| oberschenkelhals-fraktur | 1 | 1 |
| nächste | 1 | 1 |
| nora | 1 | 1 |
| noduläre | 1 | 1 |
| nodulaere | 1 | 1 |
| nina | 1 | 1 |
| nikita | 1 | 1 |
| nierenversagen | 1 | 2 |