What are David Friedel main services?
Advanced Endoscopy, Capsule Endoscopy, Celiac Plexus Neurolysis, Colon Cancer Screening, Colonoscopy, Cryotherapy, Deep Enteroscopy, Endoscopic Mucosal Resection (Emr), Endoscopic Retrograde Cholangiopancreatography (Ercp), Endoscopic Ultrasound, Endoscopy, Flexible Sigmoidoscopy, Gastroscopy, Pneumatic Dilation, Polypectomy, Push Enteroscopy, Radiofrequency Ablation, Esophagus, Upper Endoscopy (Egd).