1. American Botanical Council (ABC) (ed): The ABC Clinical Guide to Herbs. Austin, TX, American Botanical Council, 2003.
2. Fromming KH, Saller R, Wachter W: [Silymarincontaining phytopharmaceuticals - biopharmacy as an essential therapeutic quality criterion] Z Arztl Fortbild Qualitatssich 1999;93:VI-XI.
3. Pharmacology of DMSO
4. Mulrow C, Lawrence V, Jacobs B, Dennehy C, Sapp J, Gilbert Ramirez RN, Aguilar C, Montgomery K, Morbidoni L, Moore Arterburn J, Chiquette E, Harris M, Mullins D, Vickers A, Flora K: Milk thistle: effects on liver disease and cirrhosis and clinical adverse effects. Evidence Report/Technology Assessment No. 21 (Contract 290-97-0012) AHRQ Publication No. 01-E025. Rockville, MD, Agency for Healthcare Research and Quality, October 2000.