Guidelines for setting up an external quality assessment scheme for blood smear interpretation. Part II: survey preparation, statistical evaluation and reporting119, Corrons, J.L. Vives, Albarède S., Gutierrez G., Heller S., Nordin G., Skitek M., Deom A., Horvath K., De la Salle B., and Libeer J.C. , Clin.Chem.Lab Med., 0/0/2006, Volume 44, Issue 8, Number 1043, p.1039 - 1043, (2006)