Brief Reports
Copyright ©The Author(s) 2000.
World J Gastroenterol. Aug 15, 2000; 6(4): 572-576
Published online Aug 15, 2000. doi: 10.3748/wjg.v6.i4.572
Table 6 Contrast in water quality before and after the change in water
Test item (ppb)SeFeMnZnnitrosamine
10.561110.88198.339.294.20
20.39164.6010.1450.470