A new approach based on the generalized Bessel polynomials to find optimal solution of hematopoietic stem cells modelH. Saeidi, H. Hassani, M. Sh. Dahaghin and S. MehrabiEur. Phys. J. Plus, 139 6 (2024) 517DOI: https://doi.org/10.1140/epjp/s13360-024-05308-7