الوصول الحر: https://doaj.org/article/9b6cb803eb674811b969d933d75a7944Test
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_________::dde4704cba5babcb39c4427b14bc732eTesthttps://doi.org/10.1136/bmjopen-2022-069560Test
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::fcdc272e381cc84bd180bb8fa90004cfTesthttps://doi.org/10.1002/jia2.25292Test