TY  - RPRT
TI  - The variation in the accommodative-convergence accommodation (ACA) ratio upon periodic retesting.
AU  - L MANAS
AU  - P SHULMAN
PY  - 1954
DO  - 10.1097/00006324-195408000-00001
UR  - https://pubmed.ncbi.nlm.nih.gov/13188950/
ID  - 13188950
ER  -