| Answer | Crossword Clue |
|---|---|
| ABO | Blood type syst. |
| ABO | Blood-typing syst. |
| ABO | Blood-classification syst. |
| ABO | Blood typing syst. |
| ABO | Blood classification syst. |
| ABO | Blood grouping syst. |
| Answer | Crossword Clue |
|---|---|
| ABO | Blood type syst. |
| ABO | Blood-typing syst. |
| ABO | Blood-classification syst. |
| ABO | Blood typing syst. |
| ABO | Blood classification syst. |
| ABO | Blood grouping syst. |
Crossword
a puzzle consisting of a grid of squares and blanks into which words crossing vertically and horizontally are written according to clues.