TY  - RPRT
TI  - A Hypertext tutorial for teaching cephalometrics.
AU  - R D Clark
AU  - S Weekrakone
AU  - W P Rock
PY  - 1997
DO  - 10.1093/ortho/24.4.325
UR  - https://pubmed.ncbi.nlm.nih.gov/9459032/
ID  - 9459032
ER  -