From the article: "Researchers at Banner Good Samaritan Medical Center in Phoenix, Arizona, put Nintendo's interactive gaming system Wii to the test by asking eight trainee doctors to play it for an hour before performing a virtual surgery. The doctors who played Wii scored 48 percent higher on tool control and performance than those who didn't.
The researchers also found games like Marble Mania that require small, precise movements with the hand are especially good for training laparoscopic surgeons. The use of Wii for surgical training could save hospitals from spending on traditional virtual training tools, which can cost significantly more. A training platform based on the Wii console only costs about $250."