51.   Indeed, knowing how individuals react to specific medicines and what these drugs might do to prevent future illnesses will change the practice of medicine.

52.   Is there anything we can do to prevent this?

53.   Is there something you can suggest that I can do to prevent this from happening?

54.   Is there anything you can do to prevent skin cancers?

55.   Is there something I can do to prevent that likelihood?

56.   Instead of bypassing seriously narrowed arteries, as is done to prevent heart attacks, surgeons actually open the carotids and clean them out.

57.   Is there anything that can be done to prevent further damage to the trees?

58.   Is there anything we can do to prevent it from occurring?

59.   Is there anything we can do to prevent this from happening?

60.   Just below the parking lot, a group of people was arguing over just what should be done to prevent such attacks.