Citation:Osterwalder U, Sohn M, Herzog B 2014
From National Cancer Control Policy
Osterwalder U, Sohn M, Herzog B. Global state of sunscreens. Photodermatol Photoimmunol Photomed 2014 Apr;30(2-3):62-80 Available from: http://www.ncbi.nlm.nih.gov/pubmed/24734281.
Critical appraisals