Public domain
Pumping bot examined. Students at Georgetown University Hospital gather around Chester Antos, another student, while they examine a newly devised Emerson suction pressure apparatus used to stimulate circulation in legs and feet when certain diseases threaten to neccessitate amputations. The "boot",
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Credit linePumping bot examined. Students at Georgetown University Hospital gather around Chester Antos, another student, while they examine a newly devised Emerson suction pressure apparatus used to stimulate c. 1935-01-01. Harris & Ewing. Harris & Ewing Collection, Library of Congress. Public domain.