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Occurrence of the precore stop codon mutation in HBV isolates.
| Number of patients | ||||||
| Nucleotides | ||||||
| at positions | Precore stop | |||||
| Genotype | 1858:1896 | codon mutation | ||||
| With cirrhosis | With CAH | Asymptomatic | Total | |||
| A | C:G | No | 6 | 4 | 7 | 17 |
| D | T:G | No | 0 | 1 | 3 | 4 |
| T:A | Yes | 2 | 2 | 1 | 5 | |
| F | C:G | No | 0 | 0 | 1 | 1 |
| T:A | Yes | 1 | 1 | 0 | 2 | |
| Total | 9 | 8 | 12 | 29 | ||
