Nina F. Øbro, Lars P. Ryder, Hans O. Madsen, Mette K. Andersen, Birgitte Lausen, Henrik Hasle, Kjeld Schmiegelow, Hanne V. Marquart. Identification of residual leukemic cells by flow cytometry in childhood B-cell precursor acute lymphoblastic leukemia: verification of leukemic state by flow-sorting and molecular/cytogenetic methods. Haematologica 2011;97(1):137-141; https://doi.org/10.3324/haematol.2011.051383.