[1] Spanish Soc Clin Chem & Lab Med SEQC, Com Programas Externos Calidad, Padilla 323-325 BCN, Barcelona 08025, Spain
[2] Spanish Assoc Med Biopathol Lab Med AEBM LM, Com Calidad Gest Seguridad & Evidencia, Condado Trevino 2,Portal 2,Local 1, Madrid 28033, Spain
[3] Spanish Assoc Pharmaceut Analists AEFA, Programa Supervis Externa Calidad, Modesto Lafuente 3, Madrid 28010, Spain
[4] Spanish Assoc Pharmaceut Analists AEFA, Comis Garantia Calidad Lab Clin, Modesto Lafuente 3, Madrid 28010, Spain
[5] Spanish Soc Hematol & Hemotherapy SEHH, Com Estandarizac, Fortuny 51,Local 5, Madrid 28010, Spain