Prastowo, N. A., R. Haryono, P. Lucida, and S. K. Indra. “Assessing Endothelial Function in Normotensive Overweight Adolescent Using Dundee Step Test”. Medical Journal of Indonesia, vol. 19, no. 1, Feb. 2010, pp. 52-6, doi:10.13181/mji.v19i1.383.