TY  - JOUR 
T1  - Risk factors for the increasing trend in low birth weight among live births born by vaginal delivery, Brazil
JO  - Revista de Saúde Pública
A1  - Barbieri, Marco A
A1  - Silva, Antônio AM
A1  - Bettiol, Heloisa
A1  - Gomes, Uilho A
SN  - 0034-8910
UL  - 10.1590/S0034-89102000000600006
VL  - 34 
Y1  - 2000
PB  - Brasil 
ER  -