Around 1930, Beck - chest and heart surgeon - and his coworker, Leighringer, received training in resuscitation to patients in "sudden arrest", at the Case Western Hospital of Cleveland.
Hacia 1930, Beck, que era cirujano de tórax y corazón, y su compañero Leighringer, se capacitaron para dar reanimación a los pacientes que presentaban "paro súbito", en el Case Western Hospital de Cleveland.