^Bone, Kerry (2007). The Ultimate Herbal Compendium. Phyotherapy Press. ISBN 978-0646476025.
External links
Sakamoto, C (2004). "The role of mucoprotective drugs in gastric ulcer treatment: with specifical reference to their effects on gastritis mucosa.". Nippon rinsho. Japanese journal of clinical medicine62 (3): 566–70. PMID15038105.