Quansheng Song, Database Consultant Provides Technical Assistance for Guam EHDI by Guam CEDDERS Quansheng Song, Database Consultant for the CDC Early Hearing Detection and Intervention (CDC EHDI) project was on Guam to provide technical assistance on April 18-20. Pictured left to right: Quansheng Song, Database Consultant; and JJ Mendiola, Interoperability Data Specialist, Guam ChildLink-EHDI. During the visit Mr. Song addressed issues related to interoperability, emergency back up and recovery plan. Guam Early Hearing Detection & Intervention