Asmara, K., Marisha, M., Hengky, H., Agustanti, F. and Tampubolon, H.P. 2011. Erectile dysfunction and health-related quality of life in elderly males. Universa Medicina. 30, 3 (Dec. 2011), 182–188. DOI:https://doi.org/10.18051/UnivMed.2011.v30.182-188.