TY  - RPRT
TI  - A simple method for taking natural-head-position cephalograms.
AU  - K J Showfety
AU  - P S Vig
AU  - S Matteson
PY  - 1983
UR  - https://pubmed.ncbi.nlm.nih.gov/6574706/
ID  - 6574706
ER  -