TY  - JOUR 
T1  - Prevalence and costs of headaches for the public health system in a town in the interior of the state of São Paulo
JO  - Arquivos de Neuro-Psiquiatria
A1  - Bigal, Marcelo E.
A1  - Bigal, Janaína O.M.
A1  - Bordini, Carlos A.
A1  - Speciali, José G.
SN  - 0004-282X
UL  - 10.1590/S0004-282X2001000400005
VL  - 59 
Y1  - 2001
PB  - Brasil 
ER  -