Acknowledgements
We thank A.V. Misurin from Genotechnologia (Moscow, Russian Federation) for BCR/ABL measurements and laboratory of DNA diagnostics (Research Centre for Medical Genetics, Moscow, Russian Federation) for Sanger sequencing.
Potential conflict of interest
Disclosure forms provided by the authors are available with the full text of this article online at https://doi.org/10.1080/10428194.2018.1434880.