الوصول الحر: https://www.jstor.org/stable/41602895Test
الإتاحة: https://doi.org/10.15252/EMBJ.201798783Testhttps://doi.org/10.15252/embj.201798783Testhttp://hdl.handle.net/10366/155123Test
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=dedup_wf_001::2f03fc152a05b084c2b3ee455f60f1d9Testhttp://hdl.handle.net/10366/143704Test
الإتاحة: http://hdl.handle.net/10366/143704Test