Pignatari Shirley, Nogueira João Flávio, Stamm Aldo Cassol
Department of Pediatric Otolaryngology, Federal University of São Paulo, São Paulo, Brazil.
Otolaryngol Head Neck Surg. 2010 Jan;142(1):132-134.e1. doi: 10.1016/j.otohns.2009.08.024. Epub 2009 Nov 22.