TY  - RPRT
TI  - Systematic and random errors associated with Johnston's cephalometric analysis.
AU  - S D Keeling
AU  - S R Cabassa
AU  - G J King
PY  - 1993
DO  - 10.1179/bjo.20.2.101
UR  - https://pubmed.ncbi.nlm.nih.gov/8518263/
ID  - 8518263
ER  -