@misc{indiciaec18b7832fcac,
  title = {Sunscreen testing using sunlight: photographic and in vivo methods compared.},
  author = {G Kahn and G Wilcox},
  year = {1969},
  url = {https://pubmed.ncbi.nlm.nih.gov/5809823/},
  note = {Source identifier: 5809823}
}