BLOOMINGTON, Ind. -- Researchers in Indiana are searching for people who have had recurrent prostate cancer.

Doctors at the Indiana University School of Medicine are testing a procedure using sound waves to zap malignant tissue without destroying healthy tissue.

The procedure is done in the doctor's office.

Participants must be between the ages of 40 and 80 and have had radiation to treat prostate cancer.

Anyone can get further information by calling (317) 278-3434.