Chemical and physical properties and potential mechanisms: melatonin as a broad spectrum antioxidant and free radical scavenger

http://www.ncbi.nlm.nih.gov:80/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=11899100&dopt=Abstract
Curr Top Med Chem 2002 Feb;2(2):181-97
Tan DX, Reiter RJ, Manchester LC, Yan MT, El-Sawi M, Sainz RM, Mayo JC, Kohen R, Allegra M, Hardeland R.
Department of Cellular and Structural Biology, University of Texas Health Science Center, San Antonio 78229-3900, USA.