Hoosen, E., C. Hugo-Hamman, A. Cilliers, S. Brown, J. Lawrenson, J. Harrisberg, and R. Dansky. “Guidelines for Paediatric Echocardiography in South Africa”. SA Heart Journal, vol. 4, no. 4, Apr. 2017, pp. 48-51, doi:10.24170/4-4-2070.