TY  - JOUR 
T1  - The effects of air pollution on respiratory health in susceptible populations: a multilevel study in Bucaramanga, Colombia
JO  - Cadernos de Saúde Pública
A1  - Rodriguez-Villamizar, Laura Andrea
A1  - Castro-Ortiz, Henry
A1  - Rey-Serrano, Juan Jose
SN  - 0102-311X
UL  - 10.1590/S0102-311X2012000400014
VL  - 28 
Y1  - 2012
PB  - Brasil 
ER  -