Brief Reports
Copyright ©The Author(s) 1999.
World J Gastroenterol. Oct 15, 1999; 5(5): 445-447
Published online Oct 15, 1999. doi: 10.3748/wjg.v5.i5.445
Table 4 The survival and frequency of LacI- mutant from A3 strain
SampleGroupSurvival (× 108)LacI- frequency (× 10-8)
Boarding sampleGroup I3.60.4
Group II5.5240.0
Group III3.015.8
Ground controlA(1)3.6