TY  - RPRT
TI  - The normal range in diagnostic phototesting.
AU  - B L Diffey
AU  - P M Farr
PY  - 1989
DO  - 10.1111/j.1365-2133.1989.tb01325.x
UR  - https://pubmed.ncbi.nlm.nih.gov/2730842/
ID  - 2730842
ER  -