Investigation of the efficacy of percutaneous intramuscular electrical stimulation for children with cerebral palsy, spastic diplegia: Dolores B. Bertoti, M.S., P.T., P.C.S., Research Associate, Shriners Hospital, Philadelphia, PA, Assistant Professor, Alvernia College, Reading PA. Meg Stanger, M.S., P.T., P.C.S., Research Associate, Shriners Hospital, Philadelphia, PA, Assistant Professor, Philadelphia College of Pharmacy and Science, June M. Akers, M.S., Research Engineer, Shriner Hospital, Philadelphia, PA, Randal R. Betz, M.D., Assistant Chief of Staff, Shriners Hospitals, Philadelphia, PA