Purnell Whittington Choppin
Purnell Whittington Choppin, American Research administrator, virology researcher, educator. Diplomate: American Board Internal Medicine. Recipient Howard Taylor Ricketts award University of Chicago, 1978; Waksman award for excellence in microbiology National Academy Sciences, 1984; named to alumni Hall of Distinction Louisiana State University, Baton Rouge, 1983, Dean's medal Harvrd Medical School, 1992.
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