Warusawithana, A.K.Fernando, A.D.A.Guruparan, K.Athukorala, T.J.Goonaratna, C.2018-07-052018-07-052010Journal of the Ceylon College of Physicians, 41(2):p.72-75https://dl.nsf.gov.lk/handle/1/23727Diabetes mellitusErectile dysfunctionSildenafil citrateDouble blind placebo controlled crossover clinical trial of sildenafil citrate in patients with diabetes mellitus and erectile dysfunctionArticle