A triumph of surgery (crossword puzzle)

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Across
  1. 2. flexible
  2. 4. lacking energy
  3. 10. prescribed course of exercise and diet
  4. 11. tonight or confused struggle
  5. 13. a period of two weeks
  6. 15. a sound expressing pain
  7. 16. intense and selfish desire for sometime
Down
  1. 1. feeble or unsteady
  2. 3. a place where doctors treat patients
  3. 5. equipment required for a task
  4. 6. something bad or undesirable
  5. 7. squeeze and twist
  6. 8. extremely worried
  7. 9. muscular pain in the lower back of the back
  8. 12. recovering from an illusion
  9. 14. backpedal
  10. 17. Man's best friend