R Escher, D Muhlematter, HS Scott, M Jotterand and A Tobler (2004) “Two clonal occurrences of tetrasomy 21 in an atypical chronic myeloid leukemia with wild-type RUNX1 alleles. Additional support for a gene dosage effect of chromosome 21 or RUNX1 in leukemia”, Haematologica. Pavia, Italy, 89(8), pp. ECR26-ECR26. doi: 10.3324/%x.