| Answer | Crossword Clue |
|---|---|
| ABO | Donor classification letters |
| TYPEO | Universal donor classification |
| ABO | Blood classification letters |
| ABO | Hematological classification letters |
| Answer | Crossword Clue |
|---|---|
| ABO | Donor classification letters |
| TYPEO | Universal donor classification |
| ABO | Blood classification letters |
| ABO | Hematological classification letters |
Crossword
a puzzle consisting of a grid of squares and blanks into which words crossing vertically and horizontally are written according to clues.