TY  - RPRT
TI  - Optical aids for persons with subnormal vision.
AU  - W H WYCKOFF
AU  - H H KALIL
PY  - 1959
DO  - 10.1097/00007611-195911000-00027
UR  - https://pubmed.ncbi.nlm.nih.gov/13846266/
ID  - 13846266
ER  -