TY  - JOUR 
T1  - Schwannomas in the head and neck: retrospective analysis of 21 patients and review of the literature
JO  - Sao Paulo Medical Journal
A1  - Langner, Erwin
A1  - Del Negro, André
A1  - Akashi, Hugo Kenzo
A1  - Araújo, Priscila Pereira Costa
A1  - Tincani, Alfio José
A1  - Martins, Antonio Santos
SN  - 1516-3180
UL  - 10.1590/S1516-31802007000400005
VL  - 125 
Y1  - 2007
PB  - Brasil 
ER  -