  We investigated the hydrogen atom problem with deformed Heisenberg algebra
leading to the existence of minimal length. Using modified perturbation theory
developed in our previous work [M. M. Stetsko and V. M. Tkachuk, Phys. Rev. A
74, 012101 (2006)] we calculated the corrections to the arbitrary s-levels for
hydrogen atom. We received a simple relation for the estimation of minimal
length. We also compared the estimation of minimal length obtained here with
the results obtained in the preceding investigations.
