| Clue | Source | Date |
|---|---|---|
| Blood typing concern | Newsday | 31 Jul 2019 |
| Blood typing concern | LA Times Daily | 31 Jan 2016 |
| Blood typing concern | ||
| Important consideration in typing | Newsday | 20 Jun 2015 |
| Important consideration in typing | ||
| It may be in your blood | ||
| Typing concern | ||
| Concern for a blood typer | ||
| Inherited blood substance | ||
| Important blood substance. |