Author = OSAMA M. EL-GAMAL, M.D., MOHAMED O. ABU FARHA, M.D.;
Factors Affecting Safety and Efficacy of PCNL in Lower Calyceal Stones

Volume 86, September, September 2018, Pages 2923-2930

OMAR A. DARWISH, M.Sc.; AHMED M. EL-SAKKA, M.D.; MOHAMED O. ABU FARHA, M.D.; OSAMA M. EL-GAMAL, M.D.