Original Research
Copyright ©The Author(s) 1997.
World J Gastroenterol. Dec 15, 1997; 3(4): 231-233
Published online Dec 15, 1997. doi: 10.3748/wjg.v3.i4.231
Table 3 Survival rate ± standard error n(%)
YearGroup AGroup BGroup C
120.5 ± 3.651.4 ± 4.463.0 ± 3.9
25.6 ± 2.918.1 ± 4.526.6 ± 4.2
32.0 ± 2.410.1 ± 4.913.9 ± 4.7