
http://www.cbi.org.uk/index.cfm/_api/render/file/?method=inline&fileID=4232B592-ACCC-40DB-9338BA0A97198435

http://www.migrationobservatory.ox.ac.uk/resources/reports/unsettled-status-which-eu-citizens-are-at-risk-of-failing-to-secure-their-rights-after-brexit/

https://www.nao.org.uk/wp-content/uploads/2016/02/Managing-the-supply-of-NHS-clinical-staff-in-England.pdf