ST BARTHOLOMEW'S HOSPITAL / SCIENCE PHOTO LIBRARY ST BARTHOLOMEW'S HOSPITAL / SCIENCE PHOTO LIBRARY
Blood products: transfusion bags containing human fresh, frozen blood plasma, cross-matched for group O, Rhesus negative type blood. Blood plasma is the straw-coloured fluid in which the various blood cells are suspended and consists of a solution of inorganic salts with a high concentration of protein and a variety of trace substances.
Model release not required. Property release not required.