@misc{misceb2fa722,
title   = {Bilateral frontal sinus mucocele: report of two cases},
author = {Lessa, M. and Sakae, F. and Goto, E. and Romano, F. and Voegels, R. and Butugan, Ossamu},
year = {2002},
booktitle   = {Congress of the European Rhinologic Society}
}