Heinrich M, Lee Teoh H (June 2004). "Galanthamine from snowdrop--the development of a modern drug against Alzheimer's disease from local Caucasian knowledge". Journal of Ethnopharmacology. 92 (2–3): 147–62. doi:10.1016/j.jep.2004.02.012. PMID15137996.
Birks J (January 2006). Birks JS (ed.). "Cholinesterase inhibitors for Alzheimer's disease". The Cochrane Database of Systematic Reviews (1): CD005593. doi:10.1002/14651858.CD005593. PMID16437532.
Heinrich M, Lee Teoh H (June 2004). "Galanthamine from snowdrop--the development of a modern drug against Alzheimer's disease from local Caucasian knowledge". Journal of Ethnopharmacology. 92 (2–3): 147–62. doi:10.1016/j.jep.2004.02.012. PMID15137996.