الإتاحة: https://doi.org/10.1093/bja/aex185Testhttps://research.manchester.ac.uk/en/publications/cf2e2720-9059-47b6-ac72-d777c5435b0aTest
الإتاحة: https://doi.org/10.1093/bja/aex185Testhttps://biblio.ugent.be/publication/8557688Testhttp://hdl.handle.net/1854/LU-8557688Testhttps://biblio.ugent.be/publication/8557688/file/8557694Test