Velasco, Carlos Alberto, Ángelo Giovanni Valencia, and Maira Patricia Sánchez. 2007. “Digestive and Respiratory Symptoms and Parameters of 24 Hours PHmetry in Children With Pediatric Gastroesophageal Reflux Disease”. Colombia Medica 38 (1.Supl.1):14-18. https://doi.org/10.25100/cm.v38i1.Supl.1.482.