Karin Büttner-Janz, German gymnast and physician

Karin Büttner-Janz

German gymnast

Karin Büttner-Janz is a German medical doctor who won World and Olympic gold medals in artistic gymnastics for East Germany. She is co-inventor of the first artificial intervertebral disc, and from 1990 to 2012, she was chief physician of clinics in Berlin, Germany. She has a…