TY  - RPRT
TI  - Fourth century visual science.
AU  - H W Hofstetter
AU  - B Stayskal
PY  - 1992
DO  - 10.1097/00006324-199201000-00013
UR  - https://pubmed.ncbi.nlm.nih.gov/1741116/
ID  - 1741116
ER  -