@misc{misc274541b5,
title   = {Association of pneumomediastinum and dermatomyositis: case report},
author = {Amaral, R S and Louzada Junior, P and Petean, F C and Rossi, Marcos Antonio and Donadi, Eduardo Antônio},
year = {1994},
booktitle   = {Pan-American Congress of Rheumatology}
}