[Central Texas Colon & Rectal Surgeons - Dr. Robert Cline, Dr. John Mangione, Dr. William Robertson, and Dr. April Fox Austin & Kyle, TX Gastroenterologist, Dr. Robert Cline, Dr. John Mangione, Dr. William Robertson, and Dr. April Fox. Treating stomach pain, intestinal problems, acid reflux, constipation and other gastrointestinal problems.]