TY  - RPRT
TI  - [Electron microscopy studies on age-induced changes in the human iris].
AU  - R Okamura
AU  - E Lütjen-Drecoll
PY  - 1973
DO  - 10.1007/bf00428673
UR  - https://pubmed.ncbi.nlm.nih.gov/4540699/
ID  - 4540699
ER  -