https://institute.global/news/customs-and-exiting-european-union
http://www.abpi.org.uk/media/4575/uk-exiting-from-eu_life-science-industry-coalition_position-paper.pdf
https://www.wto.org/english/res_e/reser_e/ersd201704_e.pdf
https://www.ifri.org/sites/default/files/atoms/files/lecompte_vircoulon_ue_acp_2021.pdf