| Answer | Crossword Clue |
|---|---|
| HDL | Blood-work letters |
| LDL | Blood-work letters |
| ABO | Blood letters |
| ABO | Blood letters? |
| ABO | Blood typing letters |
| LDL | Blood test letters |
| ABO | Blood group letters |
| ABO | Letters in blood? |
| ABO | Blood-group letters |
| HDL | Blood-test letters |
| ABO | Blood-type letters |
| ABO | Blood classification letters |
| ABO | Blood type letters |
| ABO | Blood system letters |
| HDL | Blood test letters |
| ABO | Blood-typing letters |
| ABO | Blood drive letters |
| ABO | Type letters at the blood bank |
| ABO | All of the blood-type letters |
| ABO | All of the blood type letters |
