TY  - RPRT
TI  - Bifocal adds and environmental temperature.
AU  - I K Kragha
AU  - H W Hofstetter
PY  - 1986
DO  - 10.1097/00006324-198605000-00009
UR  - https://pubmed.ncbi.nlm.nih.gov/3717290/
ID  - 3717290
ER  -