Backing up the pioneering medical researchers and experi menters are the phalanxes and cohorts of practising clinicians in district general hospitals and in general practice who may have to implement and apply any breakthroughs and advances in practical and realistic terms. This they cannot, and should not, be expected to do without careful consideration and analysis. It is essential, therefore, to have regular reviews of the growing points of medicine which are constructively critical as well as being enthusiastic and which can present the issues and implications clearly and fairly to...