[No abstract available]3427374Motschman, T.L., Jett, B.W., Wilkinson, S.L., Quality Management systems: Theory and practice (2011) Technical manual: American Association of Blood Banks, pp. 1-39. , In: Roback JD, Grossman BJ, Harris T, Hillyer CD, editors. 17th ed. Bethesda, Maryland: AABB PressDenomme, G.A., Westhoff, C.M., Castilho, L.M., St-Louis, M., Castro, V., Reid, M.E., Consortium for Blood Group Genes (CBGG): 2009 report (2010) Immunohematology., 26 (2), pp. 47-50Franco, E., Quality control of immunologic testing of blood in the Region of the Americas (2003) Rev Panam Salud Publica., 13 (2-3), pp. 176-182. , SpanishCosta, C.S., Barjas-Castro, M.L., Ramos, R.J., Albuquerque, S.R., Araujo, F.A., Melgaco, A., Evaluation of national external QA program-Imunnohaematology (NEQAP-IH) in Brazilian blood banks (2007) Transfusion., 47 (3), pp. 272a-aAprova o Regulamento Técnico de Procedimentos Hemoterápicos [Internet], , http://brasilsus.com.br/legislacoes/gm/108431-1353.html, Brasil. Ministério da Saúde. Portaria No. 1.353 de 13 de Junho de 2011. Diário Oficial da União. Brasília (DF) 2011 Jun 13 [updated 14 July 2011cited Mar 7]. Available fromBrener, S., Ferreira, A.M., Carvalho, R.V., Valle, M.C., Souza, H.M., Performance assessment of Professional's of the Public Blood Bank Netork in the State of Minas Gerais in Testing Proficiency In Immunohematology (2012) Rev Bras Hematol Hemoter., 34 (2), pp. 80-85Bejrachandra, S., Saipin, J., Nathalang, O., Siriboonrit, U., Rungroung, E., Udee, S., External quality assessment scheme in red blood cell serology: A 5-year experience in Thailand (2006) Immunohematology., 22 (1), pp. 1-5Pinkerton, P.H., Zuber, E.D., Wood, D.E., Holburn, A.M., Prior, D., Proficiency testing in immunohaematology in Ontario, Canada, and in the United Kingdom: A comparative study (1985) J Clin Pathol., 38 (5), pp. 570-574