This symposium is devoted to Biotechnology in Blood Transfusion; there are 22 experts discussing the state of the art in the application of monoclonal anti bodies, recombinant DNA technologies and heterologous expression systems to the improvement and sometimes replacement of blood products, charac terization of blood constituents, and the effect of these developments on blood transfusion procedures. Ten and maybe five years ago the title of a symposium such as this would have been Biosciences in blood transfusion, informing what basic developments in molecular biology, biochemistry and human...