| Answer | Crossword Clue |
|---|---|
| PLACEBO | Medical test control substance |
| PLACEBO | Control substance |
| PCB | 1976 Toxic Substances Control Act substance |
| Answer | Crossword Clue |
|---|---|
| PLACEBO | Medical test control substance |
| PLACEBO | Control substance |
| PCB | 1976 Toxic Substances Control Act substance |
Crossword
a puzzle consisting of a grid of squares and blanks into which words crossing vertically and horizontally are written according to clues.