TY  - JOUR
PY  - 2003//
TI  - Bias when using dead controls to study handgun purchase as a risk factor for violent death
JO  - Injury prevention
A1  - Wiebe, Douglas J.
A1  - Branas, Charles C.
SP  - 381
EP  - 382
VL  - 9
IS  - 4
N2  - Abstract unavailable.
LA  - en
SN  - 1353-8047
UR  - http://dx.doi.org/
ID  - ref1
ER  -