Silvester, I would agree with you, if I was not involved in a study of a series of mutations that cause sudden cardiac death and that do occur spontaneously sometimes. Not often, but loss-of-function mutations do occur and if we cannot prove otherwise, we should keep it in mind. But I agree that looking into the crossing with SW is important, but very very hard to prove (and saying dog is not typical is not proof enough I am afraid, not at courts of law).
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