The role of combined 24‐h multichannel intraluminal impedance‐pH monitoring in the evaluation of children with gastrointestinal symptoms suggesting gastro‐esophageal reflux disease
1. Referral Center for Pediatric Gastroenterology and Nutrition, Children's Hospital Zagreb, Zagreb, Croatia;2. Department of Pulmonology, Allergology and Immunology, Children's Hospital Zagreb, Zagreb, Croatia