title: Radiographic appearance of a catheter-free wireless esophageal pH probe.
authors.affiliation: Division of Thoracic Imaging, Department of Radiology, Hospital of the University of Pennsylvania, 3400 Spruce St., 1 Silverstein, Philadelphia, PA 19104, USA.
authors.forename: Charles T
authors.initials: CT
authors.lastname: Lau
authors.forename: Warren B
authors.initials: WB
authors.lastname: Gefter
authors.forename: David C
authors.initials: DC
authors.lastname: Metz
mesh_terms: D004867:Equipment Design; D004947:Esophagus / Q000000981:diagnostic imaging*; D005547:Foreign Bodies / Q000000981:diagnostic imaging*; D005745:Gastric Acidity Determination / Q000295:instrumentation*; D006801:Humans; D008297:Male; D008875:Middle Aged; D011859:Radiography