NYTimes article: http://www.nytimes.com/2016/09/15/sports/doping-olympics-russia-hacking-williams-biles.html(With gratuitous "Russian hacking" mentions of course.)
"Stuart Miller, director of the International Tennis Federation’s antidoping program, approved the applications, and he said the Williams’s medical records showed that the system had worked properly.
“Anybody who is an athlete and is subject to an antidoping program, like the Williams sisters, is subject also to getting ill and having medical conditions,†Mr. Miller said. “They’re not immune from that.â€
Mr. Miller said the tennis federation received an average 100 requests annually, a sizable number of which were withdrawn before they were ruled on. A panel of medical professionals considered each case file in a blind review, excluding the identity of the requesting athlete, he said, and ultimately approved roughly 50 to 60 percent of the requests.
In his 10-year tenure over the program, Mr. Miller said that a case involving Ms. Mattek-Sands — the American tennis player whose files were published on Wednesday — was the only one WADA had overturned.
Her application for drugs to treat “adrenal insufficiency†— hydrocortisone and DHEA — was approved in 2013 by the tennis federation but revoked in 2014 by WADA, which believed DHEA would enhance her performance."
Dr. Alan Rogol, an endocrinologist who works with the United States Anti-Doping Agency on its review of exemption requests, called some of the decisions “no-brainers,†like approving insulin for an athlete with Type-1 diabetes. But he said the use of DHEA, such as Ms. Mattek-Sands had requested, should “never†be approved.
So what we found is, that for someone living in Arizona, it was fairly easy to hook up with a dubious Ohio "body building" doctor, get a local endocrinologist to rubberstamp DHEA as OK, and then get a different endocrinologist in Ohio to do the same when more info was demanded.