Squamous cell lesions of the upper and lower oesophagus in the experimental groups
| Weeks (No) | Upper oesophagus | Lower oesophagus | ||||||
|---|---|---|---|---|---|---|---|---|
| N | HP | PH | Dys | N | HP | PH | Dys | |
| N; normal, HP; hyperplasia, PH; papillary hyperplasia, Dys; dysplasia. | ||||||||
| 10 (2) | 2 | 2 | 2 | |||||
| 20 (12) | 3 | 4 | 5 | 3 | 12 | 12 | ||
| 30 (8) | 3 | 4 | 2 | 8 | 7 | |||
| 40 (7) | 1 | 6 | 4 | 5 | 7 | |||