الوصول الحر: https://explore.openaire.eu/search/publication?articleId=pmid________::873ebe0dfe911c7c03ec529027a10c17Testhttps://europepmc.org/articles/PMC6434708Test/
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=pmid________::ab784069574eb0554b9a89a2b90c94eaTesthttps://europepmc.org/articles/PMC5735028Test/
الإتاحة: https://doi.org/10.17615/x92c-cc93Testhttps://cdr.lib.unc.edu/downloads/44558j98p?file=thumbnailTesthttps://cdr.lib.unc.edu/downloads/44558j98pTest
الإتاحة: https://doi.org/10.17615/d2gv-4708Testhttps://cdr.lib.unc.edu/downloads/vt150q10w?file=thumbnailTesthttps://cdr.lib.unc.edu/downloads/vt150q10wTest
الإتاحة: https://doi.org/10.17615/ffq5-eq04Testhttps://cdr.lib.unc.edu/downloads/b8515t49t?file=thumbnailTesthttps://cdr.lib.unc.edu/downloads/b8515t49tTest
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=pmid________::a8c35c21798b05fe218c8516b2f2194aTesthttps://europepmc.org/articles/PMC4305000Test/
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=pmid________::012284bf524946636576da90305c3451Testhttps://europepmc.org/articles/PMC2797680Test/
الإتاحة: http://hdl.handle.net/2013/ULB-DIPOT:oai:dipot.ulb.ac.be:2013/121767Test