Zaahkouk, A. M. S., M. T. Abdel Aziz, A. M. Rezq, H. M. Atta, H. H. Fouad, H. H. Ahmed, D. Sabry, and M. H. Yehia,  "Efficacy of a novel water-soluble curcumin derivative versus sildenafil citrate in mediating erectile function",  International journal of impotence research, vol. 27, issue 1, pp. 9-15, 2015.