"My wife, Ida, was seeking to improve her hearing, which over the last three years had deteriorated to the point of virtual deafness. She rapidly lost most of the hearing in her right ear, and then progressively her left ear started failing. On our first visit to Dr. Chang, you agreed to try to help her; you advised that up to six weeks of treatments would be required to improve her hearing. In the fourth treatment, my wife started hearing and understanding TV sounds, family member's voices, phone ringing, etc. Since then, her hearing has improved to the point her self-confidence is returning and she is readily conversing, answering the phone, driving and shopping, in effect, resuming her normal style.... You have our deepest gratitude and appreciation for healing services rendered to my wife."
– Benjamin Roberts