TY  - RPRT
TI  - Ionomer-based bone substitute in otologic surgery.
AU  - G Geyer
AU  - J Helms
PY  - 1993
DO  - 10.1007/bf00186221
UR  - https://pubmed.ncbi.nlm.nih.gov/8217125/
ID  - 8217125
ER  -