TY  - RPRT
TI  - Head positioning and projection errors in submentovertex radiographic analysis.
AU  - A C Cheng
AU  - K K Lew
AU  - S Bhole
PY  - 1997
UR  - https://pubmed.ncbi.nlm.nih.gov/10597171/
ID  - 10597171
ER  -