@misc{indiciaee37734840b37, title = {Sun protection with trees.}, author = {B L Diffey and J L Diffey}, year = {2002}, doi = {10.1046/j.1365-2133.2002.483010.x}, url = {https://pubmed.ncbi.nlm.nih.gov/12174130/}, note = {Source identifier: 12174130} }