This is a very well informed and altogether excellent review of the situation as it developed. I remember as an orthopaedic surgeon being criticised by our authorities for an unwillingness to prescribe this medication. I remember also the campaigns for pain clinics where "anaesthetist and patient meet at opposite ends of a needle to mutual satisfaction."
It has become well known that a free meal will attract the medical profession to listen to any nonsense, whereas the world's most knowledgeable specialist is unheard if he doesn't feed his audience.