TY  - RPRT
TI  - Statistical concepts in refraction.
AU  - L Hyams
AU  - A Safir
PY  - 1971
DO  - 10.1097/00004397-197101110-00007
UR  - https://pubmed.ncbi.nlm.nih.gov/5129702/
ID  - 5129702
ER  -