TY  - RPRT
TI  - [Head posture in lateral roentgen image].
AU  - U Hirschfelder
AU  - H Hirschfelder
PY  - 1991
DO  - 10.1007/bf02166731
UR  - https://pubmed.ncbi.nlm.nih.gov/1757021/
ID  - 1757021
ER  -