Becker-Schiebe M, Mengs U, Schaefer M, Bulitta M, Hoffmann W. Topical use of a silymarin-based preparation to prevent radiodermatitis : results of a prospective study in breast cancer patients. Strahlenther Onkol. 2011 Aug;187(8):485-91. doi: 10.1007/s00066-011-2204-z. Epub 2011 Jul 22. PMID: 21786113.