TY  - JOUR
PY  - 2003//
TI  - Position on the moped, risk of head injury and helmet use: an example of confounding effect
JO  - International journal of epidemiology
A1  - Jimenez-Moleon, Jose Juan
A1  - Luna-del-Castillo, Juan de Dios
A1  - Lardelli-Claret, Pablo
SP  - 162
EP  - 164
VL  - 32
IS  - 1
N2  - Abstract unavailable.
LA  - 
SN  - 0300-5771
UR  - http://dx.doi.org/
ID  - ref1
ER  -