TY  - RPRT
TI  - A method for obtaining periodic identical bitewing radiographs.
AU  - E Kirkegaard
AU  - P Zeuner
PY  - 1974
DO  - 10.1111/j.1600-0722.1974.tb01923.x
UR  - https://pubmed.ncbi.nlm.nih.gov/4532802/
ID  - 4532802
ER  -