Quando e porque é que o sangue é cruzado? A prospective survey of transfusion laboratory practice in two regions in the north of England.

Tinegate HN, Davies T, Elshaw RJ, Jane G, Lyon M, Norfolk DR, Plews DE, Troy CB, Watson D. Vox Sang. 2010 Aug 1;99(2):163-7. Epub 2010 Feb 25.

NHS Blood and Transplant, Serviço Nacional de Sangue, Holland Drive, Newcastle, Reino Unido.