TY  - RPRT
TI  - Breaks in Mayfield head holder.
AU  - G I Chovanes
PY  - 1992
DO  - 10.3171/jns.1992.77.6.0977
UR  - https://pubmed.ncbi.nlm.nih.gov/1432146/
ID  - 1432146
ER  -