الوصف :Change in medicine occurs all the time. This often imperceptible progress is at a much more rapid pace than we imagine. With these thoughts in mind I tackled the third edition of this book, asking myself, for every sentence and each page, 'how has the practice and approach to the topic been advanced?' Many changes, both subtle and more blatant, were needed. Advances in genetics, molecular biology and immunology have been incorporated, alterations in treatment regimens inserted and the cultural change of'the holistic team approach' has been integrated in the appropriate places. Figures have been brought up to date and replaced if necessary.