Winternitz, M. C. (Milton C.). “Plate IV (Fig. 22): Frozen Section of Lung of Dog Vitally Stained with Trypan Blue before Gassing and Killed Immediately after Gassing.” Collected Studies on the Pathology of War Gas Poisoning. New Haven, Connecticut: Yale University Press, 1920. https://digital.sciencehistory.org/works/6969z096b.
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