الإتاحة: https://doi.org/10.1093/jac/dkab462Testhttp://hdl.handle.net/11390/1225038Test
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::31c03cd9abbc31dd8e611ee23aebf903Testhttps://hdl.handle.net/1874/419152Test
الإتاحة: https://lirias.kuleuven.be/handle/123456789/152161Test