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In 1978, Carol Guest became one of the first patients in the world outside the United Kingdom to use an insulin pump. Under the guidance of pioneer Dr. Wilson Rodger at St. Joseph’s Hospital in London, she was part of the earliest pump trials. “The pump then was about the size of a brick. I remember trying to get into the bathtub and balancing this big thing on the edge. Now it’s the size of a pager and can be unhooked.”