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. 1997 Jun 24;94(13):6943–6947. doi: 10.1073/pnas.94.13.6943

Figure 3.

Figure 3

Survival rate of the heterozygotes and wild-type mice. Survival rate of the heterozygotes (n = 17, closed circle) is significantly less than that of the wild-type mice (n = 20, open circle).