Developing new drugs

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Across
  1. 3. test-tube experiment
  2. 6. inactive substance
  3. 7. invention
  4. 9. results
  5. 11. stage
  6. 12. assess
Down
  1. 1. give
  2. 2. patent
  3. 4. receptive
  4. 5. happen
  5. 8. test (for a disease for instance - a verb)
  6. 10. component