الوصول الحر: https://doaj.org/article/fa80c26ad33443938150866628a1b0ddTest
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::07f6e601fe585f091b8a0affd17ebc63Testhttps://doi.org/10.1038/s41598-019-52035-6Test
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8afb09c5b6129302ad71256377af987eTesthttp://europepmc.org/articles/PMC6742665Test
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1538a94cde2651c92a4ddacea36c3c64Test