It was done by Dr. Vince Felitti at Kaiser and Dr. Bob Anda at the CDC, and together, they asked 17,500 adults about their history of exposure to what they called "adverse  childhood experiences," or ACEs.
Den gjordes av Dr Vince Felitti vid Kaiser och Dr Bob Anda vid folkhälsomyndigheten, tillsammans frågade de 17 500 vuxna  om deras historiska utsatthet av vad de kallade  olyckliga barndomserfarenheter (ACE).