Theo’s marvelous medicine
Joseph deBettencourt Chicago, Illinois, USA Illustration of the Wade-Dahl-Till shunt from the original patent application. Wade, Stanley C. (1966) US Patent No.3233610. Retrieved from On a cool December day in 1960, a nanny was pushing an infant in a stroller down 85th Street in New York City. Stepping into the road, the nanny saw […]