TY - RPRT TI - New objective classification system for nuclear opacification. AU - D D Duncan AU - O B Shukla AU - S K West AU - O D Schein PY - 1997 DO - 10.1364/josaa.14.001197 UR - https://pubmed.ncbi.nlm.nih.gov/9168593/ ID - 9168593 ER -