@inproceedings{inproceedings056c272c,
title   = {Spherical configuration of the aortic valvular apparatus},
author = {Fontes, R D and Bonassa, J and Toringoe, M and Magaldi, R B and Jatene, Adib},
year = {1992},
booktitle   = {Interamerican Congress of Cardiology}
}