TY  - RPRT
TI  - A case of progressive external root resorption.
AU  - O Zmener
AU  - J A Kuperman
PY  - 1991
DO  - 10.1111/j.1600-9657.1991.tb00216.x
UR  - https://pubmed.ncbi.nlm.nih.gov/1820861/
ID  - 1820861
ER  -