TY  - RPRT
TI  - A simple device for measuring angles without marking the radiographic film.
AU  - L R Kuhns
AU  - A J Martin
PY  - 1975
DO  - 10.1148/115.1.220
UR  - https://pubmed.ncbi.nlm.nih.gov/1118607/
ID  - 1118607
ER  -