TY  - RPRT
TI  - Does anyone know how to differentiate a 'functional' defect from a cosmetic one?
AU  - R L Anderson
AU  - J B Holds
PY  - 1990
DO  - 10.1001/archopht.1990.01070140039024
UR  - https://pubmed.ncbi.nlm.nih.gov/2256836/
ID  - 2256836
ER  -