TY  - RPRT
TI  - [Periapical tooth changes in the roentgenogram].
AU  - H J MAURER
PY  - 1951
DO  - 10.1055/s-0028-1117433
UR  - https://pubmed.ncbi.nlm.nih.gov/14887467/
ID  - 14887467
ER  -