Official websites use .gov
A
.gov website belongs to an official
government organization in the United States.
Secure .gov websites use HTTPS
A lock (
) or https:// means you've safely
connected to the .gov website. Share sensitive
information only on official, secure websites.
Representative traces of simultaneous recordings of esophageal pH with the pH capsule (JSPH-1) (upper trace) and the conventional pH measurement system (lower trace). Arrows indicate pH episodes detected simultaneously by the 2 devices. Both the pattern of contrast pH traces and the acid reflux period between the JSPH-1 and measurement system were consistent.
