title: Assessment of three methods of pH probe positioning in preterm infants.
authors.forename: Andrew
authors.initials: A
authors.lastname: Day
authors.forename: Judith
authors.initials: J
authors.lastname: Marchant
authors.forename: Timothy D
authors.initials: TD
authors.lastname: Bohane
mesh_terms: D000293:Adolescent; D001827:Body Height; D001835:Body Weight; D002648:Child; D002675:Child, Preschool; D004947:Esophagus / Q000737:chemistry* / Q000254:growth & development; D005260:Female; D005764:Gastroesophageal Reflux / Q000175:diagnosis*; D006801:Humans; D006863:Hydrogen-Ion Concentration; D007223:Infant; D008297:Male; D008433:Mathematics