135 - 75 - Fan et al, 1995 Bronchus Plasma 29 - 65 - Howie et al, 1990 *This paper. Table 3 Blood levels of the GSH-s-transferase P1-isoenzyme in oesophageal cancer and normal patients expressed as g L-1 Cancer Control Mean 32.3 17.5 SEM 3.7 1.5 P-value (Mann-Whitney) 0.0016* - *P < 0.01 difference highly significant. 36 RD Levy et al British Journal of Cancer (1999) 80(1/2), 32-37 (c) Cancer Research Campaign 1999 activities or levels of both GS-Px and GST-P are of no conse- quence.
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