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Submissions from 1983

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Letter from David P. Rall to Henry Spira, David P. Rall

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Lethal Dosing of Lab Animals Expected to Decline, Ernest Roberson

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Lots of Talk About LD50, Marjorie Sun

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Experiments Raise Hopes on Curbing Use of Animals in Laboratory, Bayard Webster

Submissions from 1981

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International Coalition to Abolish LD-50, Michael Marten