Ali El-Shekeil, Abeer Omer, Sama Al-Aghbari and Omar Al-Shuja’a 2013. Anti-Cancer and Anti-Microbial Activity Studies of Some Complexes of Trimethoprim . Journal of Cancer Research Updates. 2, 1 (Jan. 2013),  14–20. DOI:https://doi.org/10.6000/1929-2279.2013.02.01.3.