الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b53e7d13646e447db99e5f449615f2baTesthttps://doaj.org/article/a3228c1a36374ecb8b19ee0cf182bea6Test
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9c2c23a28fd9bceb51eeb9d0d1e30d8dTesthttp://europepmc.org/articles/PMC4314457Test