Approximate solutions of Schrodinger equation and expectation values of Inversely Quadratic Hellmann-Kratzer (IQHK) potentialC. P. Onyenegecha, C. J. Okereke, I. J. Njoku, C. A. Madu, R. U. Ndubuisi and U. K. NwajeriEur. Phys. J. Plus, 137 1 (2022) 147DOI: https://doi.org/10.1140/epjp/s13360-021-02315-w