الوصول الحر: https://doaj.org/article/414f0540cc8a44349054e048a411f9a1Test
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5a3b5fe50e31af86badacd0f32e11840Testhttps://doi.org/10.12688/wellcomeopenres.16953.2Test
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5122eb84bc5853e35a199b68ecb9053eTesthttps://pubmed.ncbi.nlm.nih.gov/33195819Test