evidence: In 2009, pediatrician and former medical school professor Bose Ravenel and I published "The Diseasing of America's Children" (Thomas Nelson), in which we argued from facts that ADHD and other childhood behavior disorders were inventions of the psychological-psychiatric-pharmaceutical industry. [...] Just to be clear: I am not saying ADHD is over-diagnosed; I am saying it does not exist. It is a fiction. I've been saying this since the early 1980s and have been the target, since then, of much professional and parent criticism, even scorn. Russell Barkley, for example, widely regarded as the world's leading expert on ADHD, equates me with Scientologists and claims that I believe television causes ADHD. He cannot honestly debate me, so he mocks me and distorts what I have actually said. [...] In the January 2017 edition of CuriousMindMagazine.com ("Renowned Harvard Psychologist Says ADHD Largely a Fraud"), Kagan is quoted as saying that ADHD is "an invention." Referring to the drugs used to supposedly treat ADHD, Kagan says that if a drug is available, physicians will use it.