@misc{indiciaeac9a0b4e472e,
  title = {A method for evaluating sunscreen protection from longwave ultraviolet.},
  author = {R F Dahlen and S I Shapiro and C Z Berry and M M Schreiber},
  year = {1970},
  doi = {10.1111/1523-1747.ep12280663},
  url = {https://pubmed.ncbi.nlm.nih.gov/4990029/},
  note = {Source identifier: 4990029}
}