Abstract
References
National Institute for Clinical Excellence. Clinical Guidelines 3-Pre-operative tests. London: National Institute for Clinical Excellence; 2003.
Murphy MF, Wallington TB, Kelsey P, et al. British Committee for Standards in Haematology, Blood Transfusion Task Force. Guidelines for the clinical use of red cell transfusions. Br J Haematol. 2001 Apr;113(1):24-31. Available from: https://doi.org/10.1046/j.1365-2141.2001.02701.x.