TY  - RPRT
TI  - Cycle helmets.
AU  - J Whitelegg
AU  - R Davis
PY  - 1992
DO  - 10.1136/bmj.305.6867.1504-a
UR  - https://pubmed.ncbi.nlm.nih.gov/1493419/
ID  - 1493419
ER  -