Sep 2002 /Transfusion Practice Where does blood go? Prospective observational study of red cell transfusion in north England. Wells AW, Mounter PJ, Chapman CE, Stainsby D, Wallis JP BMJ 2002;325(7368):803-807. NATA Rating : Review by : NATA ReviewImportant but not very sophisticated study. – V. Kretschmer blood supply, blood tranfusion, blood usage, bloos shortage, HOSPITALS, UK Share Article: Retrograde autologous priming of the cardiopulmonary bypass circuit reduces blood transfusion after coronary artery surgery. An audit on the blood transfusion requirements for revision hip arthroplasty.