TY  - RPRT
TI  - How well are sunscreen users protected?
AU  - R Stokes
AU  - B Diffey
DO  - 10.1111/j.1600-0781.1997.tb00227.x
UR  - https://pubmed.ncbi.nlm.nih.gov/9542755/
ID  - 9542755
ER  -