TY  - JOUR 
T1  - Sensitivity analysis for an unmeasured confounder: a review of two independent methods
JO  - Revista Brasileira de Epidemiologia
A1  - Luiz, Ronir Raggio
A1  - Cabral, Maria Deolinda Borges
SN  - 1415-790X
UL  - 10.1590/S1415-790X2010000200002
VL  - 13 
Y1  - 2010
PB  - Brasil 
ER  -