الوصول الحر: https://doaj.org/article/c863aadc204d44c4a0c3c0d944780645Test
الوصول الحر: https://doaj.org/article/6f8cad2c2fef4c179f178d9681bf55cfTest
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8980e67505d595e3a6f29fda94ae9722Testhttps://pubmed.ncbi.nlm.nih.gov/25479081Test