الإتاحة: https://doi.org/10.1186/s13063-021-05665-zTesthttps://hal.science/hal-03704468Testhttps://hal.science/hal-03704468/documentTesthttps://hal.science/hal-03704468/file/richard2021TRIAL.pdfTest
الإتاحة: https://doi.org/10.1016/j.chest.2020.04.053Testhttps://hal.univ-lille.fr/hal-03325552Testhttps://hal.univ-lille.fr/hal-03325552/documentTesthttps://hal.univ-lille.fr/hal-03325552/file/S001236922031401X.pdfTest
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::280a86797c5c5cce27c4b9fb23df6dc7Testhttp://europepmc.org/articles/PMC8653629Test
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::221816296db72a05d43aaf09e0a5c8e0Testhttps://pubmed.ncbi.nlm.nih.gov/34897559Test
الإتاحة: https://doi.org/20.500.12210/40959Testhttps://hdl.handle.net/20.500.12210/40959Test