Nige I am very glad that this has been discovered and shown, in one instance so far, to be effective. Our friends at NICE now have to get this repeated many times and with different machines and groups to prove to themselves that this method is universally safe and does what it says every time before it’ll get approved for general use. So yes, it will be a while…. We certainly don’t want another Fleischmann and Pons (cold fusion) or, worse still, the Wakefield (and others) declaration of the role played by MMR vaccines as the cause of autism in children.