Pre-analytical parameters associated with unsuccessful karyotyping in myeloid neoplasm: a study of 421 samples - Santos, M. F. M; Oliveira, F. C. A. C; Kishimoto, R. K; Borri, D; Santos, F. P. S; Campregher, P. V; Silveira, P. A. A; Hamerschlak, N; Mangueira, C. L. P; Duarte, F. B; Velloso, Elvira Deolinda Rodrigues Pereira (Brazilian journal of medical and biological research, 2019)