title: The brass standard.
authors.forename: A R
authors.initials: AR
authors.lastname: Colon
authors.forename: J S
authors.initials: JS
authors.lastname: DiPalma
mesh_terms: D005745:Gastric Acidity Determination; D005764:Gastroesophageal Reflux / Q000175:diagnosis*; D006801:Humans; D006863:Hydrogen-Ion Concentration; D007223:Infant