@misc{indiciaecbe9c6b1aece,
  title = {Sunlight as an ultraviolet source.},
  author = {D G Pitts},
  year = {1990},
  doi = {10.1097/00006324-199006000-00003},
  url = {https://pubmed.ncbi.nlm.nih.gov/2199883/},
  note = {Source identifier: 2199883}
}