Table 2.
Proximal esophageal contractions before and after sildenafil with swallows of liquid and solid bolus followed by normal or ineffective contractions in distal esophagus
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.