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.
Lower oesophageal sphincter pressures (LOSP) initially and at one month after pneumatic dilatation (A) and botulinum toxin treatment (B). The horizontal lines denote group medians and the vertical bars represent interquartile ranges (25% to 75%). The dotted horizontal line represents a lower oesophageal sphincter pressure of 12 mm Hg.
