Gründemann C, Gruber CW, Hertrampf A, Zehl M, Kopp B, Huber R (July 2011). "An aqueous birch leaf extract of Betula pendula inhibits the growth and cell division of inflammatory lymphocytes". Journal of Ethnopharmacology. Immunomodulators. 136 (3): 444–451. doi:10.1016/j.jep.2011.05.018. PMID21619918.
Vakkari P (2009). "Silver birch (Betula pendula)"(PDF). EUFORGEN Technical Guidelines for Genetic Conservation and Use. Archived from the original(PDF) on 18 January 2017. Retrieved 17 January 2017.
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"Filsuvez EPAR". European Medicines Agency (EMA). 13 April 2022. Archived from the original on 6 July 2022. Retrieved 6 July 2022. Text was copied from this source which is copyright European Medicines Agency. Reproduction is authorized provided the source is acknowledged.
Gründemann C, Gruber CW, Hertrampf A, Zehl M, Kopp B, Huber R (July 2011). "An aqueous birch leaf extract of Betula pendula inhibits the growth and cell division of inflammatory lymphocytes". Journal of Ethnopharmacology. Immunomodulators. 136 (3): 444–451. doi:10.1016/j.jep.2011.05.018. PMID21619918.
Vakkari P (2009). "Silver birch (Betula pendula)"(PDF). EUFORGEN Technical Guidelines for Genetic Conservation and Use. Archived from the original(PDF) on 18 January 2017. Retrieved 17 January 2017.
"Filsuvez EPAR". European Medicines Agency (EMA). 13 April 2022. Archived from the original on 6 July 2022. Retrieved 6 July 2022. Text was copied from this source which is copyright European Medicines Agency. Reproduction is authorized provided the source is acknowledged.