Deep Sedation with Propofol for Upper Gastrointestinal Endoscopy in Children, Administered by Specially Trained Pediatricians: a Prospective Case Series with Emphasis on Side Effects - Barbi, E; Petaros, P; Badina, L; Pahor, T; Giuseppin, I; Biasotto, E; Martelossi, S; Di Leo, G; Sarti, A; Ventura, A (Endoscopy, 2006)