Back to matchesWe found a matchYour institution may have access to this item. Find your institution then sign in to continue.TitleAmbulatory pH measurements at the upper esophageal sphincter.AuthorsSmit CF; Tan J; Devriese PP; Mathus-Vliegen LMH; Brandsen M; Schouwenburg PF; Smit, C F; Tan, J; Devriese, P P; Mathus-Vliegen, L M; Brandsen, M; Schouwenburg, P FPublicationLaryngoscope, 1998, Vol 108, Issue 2, p299ISSN0023-852XPublication typejournal article