TY  - RPRT
TI  - Skin phototypes 2003.
AU  - Susanne Astner
AU  - R Rox Anderson
PY  - 2004
DO  - 10.1046/j.1523-1747.2003.22251.x
UR  - https://pubmed.ncbi.nlm.nih.gov/15009759/
ID  - 15009759
ER  -