Subject
Child; Humans; Prognosis; adolescent; Preschool; infant; Nervous System Diseases/complications; Nutritional Failure; Diagnosis; Differential; Digestive System; Pediatrics/methods; Proton Pumps/antagonists & inhibitors; Enzyme Inhibitors/therapeutic use; Diagnostic Techniques; Gastroesophageal Reflux/complications/diagnosis/physiopathology/therapy; Histamine H2 Antagonists/therapeutic use; Medical History Taking/methods; Respiratory Tract Diseases/etiology/prevention & control; Vomiting/diagnosis/etiology