الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3b5fd2c7ee684fd4d65c71851e2fdb32Testhttp://hdl.handle.net/11568/1123121Test
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::56fc4aab097a98459b690e42ed378cb5Testhttp://europepmc.org/articles/PMC7814426Test
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::bc0a953085b819c205ebd84ed3480b56Testhttps://doi.org/10.4103/2320-3897.174414Test