Procedures Preformed by Dr. John Leung, MD

• Allergy Shots
• Allergy Skin Testing
• Capsule Endoscopy
• Colonoscopy, Proctosigmoidoscopy, and Sigmoidoscopy
• Drug or Food Challenge
• Endoscopy (Esophagus, Stomach, Small Intestine)
• Liver Biopsy
• Patch Testing