lisa gerry, our apologies. dr. almashat still ahead, biggest names the best? critical look at the number one choice. one choice. america mobile app, available for your apple and android mobile device. download it now >>> welcome back. alcoholics anonymous turned 79 and has been a stable in america's addiction treatment. some say that's the problem, that 12 step problems have been around so long, nobody sees if they are working. joining us from los angeles is dr. author of the book the sober tru truth. deburninging the science. from detroit michigan, tom kane, an adix psychiatrist who has experienced alcoholism. thank you both for joining us. dr. dodus, in your book, you say that the success rate information that alcoholics anonymous provides is deeply flawed. what led you to that conclusion? >> we looked at all of the studies that examined aa's success going back many, many years and up to the time we published the book and what they showed is that overall, the success rate for aa is between 5 and 10%, which is a lot better than zero % but the problem is that