TY  - RPRT
TI  - Xeroradiography for cephalometric analysis.
AU  - N A Johnson
PY  - 1976
DO  - 10.1016/s0002-9416(76)80025-5
UR  - https://pubmed.ncbi.nlm.nih.gov/1063543/
ID  - 1063543
ER  -