Sources:
https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6344100/
https://www.conifers.org/ta/Taxus.php
https://www.conifers.org/ta/Taxaceae.php
https://www.iceman.it/en/equipment/
https://nhm.openrepository.com/bitstream/handle/10141/622351/Clacton%20Spear%202.pdf
https://ati.woodlandtrust.org.uk/how-to-record/species-guides/yew/
http://www.ecoenchantments.co.uk/myogham_yewpage.html
https://www.bellarmine.edu/faculty/drobinson/englishyew.asp
https://www.theparisreview.org/blog/2015/10/31/beneath-the-yew-trees-shade/
https://scotlands-yew-trees.org/history-culture-myth/yew-taxus-a-sensational-survivor/
http://bohemianbudgie.blogspot.com/2014/12/the-sacred-yew-of-yule.html
https://mountpisgaharboretum.org/learn/plant-list/taxus-brevifolia/
https://www.news-medical.net/health/Paclitaxel-Production.aspx