It is admitted in internal memorandum that Lederle did not test all the original seeds. Furthermore, they felt that if the progeny seeds were free of any extraneous agents then one can presume the parent seeds were satisfactory. However, in an interoffice correspondence obtained by SV40 Cancer we see that the progeny seeds did contain SV40 thereby disqualifying the validity of the original seeds. Nevertheless, Lederle still released their product to the American Public.
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