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.
Immunoreactivity of microsomal prostaglandin E synthase 1 in the squamous cell lesions of the lower oesophagus in normal controls and experimental groups
| Positive | Negative | |
| Normal controls | 0 | 8 |
| Papillary hyperplasia | 3 | 24 |
| Dysplasia | 28* | 0 |
*p<0.05 compared with normal and papillary hyperplasia.
