الإتاحة: https://doi.org/10.1056/NEJMoa1811744Testhttp://hdl.handle.net/11567/947620Test
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::40d506f001c3a0d26c8a42ffc4dd8bb5Testhttps://pubmed.ncbi.nlm.nih.gov/33874746Test
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::69fdb280519f3278698922ae350aabdbTesthttps://pubmed.ncbi.nlm.nih.gov/33565484Test