1. A Review of Sunscreen Safety and Efficacy
2. Contact and photocontact sensitivity to sunscreens
3. EEC Directive 83/574, 1983, No. L332, pp 38–42.
4. FDA Department of Health and Human Services, 21CFR Parts 310, 352, 700 and 740, RIN 0910-AAOI, Sunscreen Drug Products for Over-The-Counter Human Use Final Monograph, Federal Register, Vol. 64, No. 98/21 May 1999/Rules and Regulations, pp. 27666–27693.