I just rediscovered the pdf of The Psychiatric ER Survival Guide by Dr. James Knoll IV, MD. There was a link to this very fine educational document designed for residents in the February 16, 2011 issue of Psychiatric Times, at the end of an article with the same title by Dr. Knoll. Since you have to log in to Psychiatric Times, I assumed the guide was not open access and you’d have to register with Psychiatric Times to get access. But registration is free. However, I had to register again, presumably because of a major update to the site. The page to Dr. Knoll’s article no longer exists. You get a “Page not found” error message.
I found another link here.