TY  - JOUR 
T1  - Health in cities: is a systems approach needed?
JO  - Cadernos de Saúde Pública
A1  - Roux, Ana V. Diez
SN  - 0102-311X
UL  - 10.1590/0102-311XDE01S115
VL  - 31 
Y1  - 2015
PB  - Brasil 
ER  -