AJR Am J Roentgenol. 2005 Mar;184(3 Suppl):S40-2.
Radiographic appearance of a catheter-free wireless esophageal pH probe.
Lau CT, Gefter WB, Metz DC.
Division of Thoracic Imaging, Department of Radiology, Hospital of the University of Pennsylvania, 3400 Spruce St., 1 Silverstein, Philadelphia, PA 19104, USA.
PMID: 15728017 [PubMed - indexed for MEDLINE]
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