TY  - RPRT
TI  - Collagen injections.
AU  - P Karam
AU  - A G Kibbi
PY  - 1992
DO  - 10.1111/j.1365-4362.1992.tb02690.x
UR  - https://pubmed.ncbi.nlm.nih.gov/1500234/
ID  - 1500234
ER  -