الوصول الحر: https://doaj.org/article/bd2690d72df84212af7a10d67ce97f20Test
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::33c87cc816179c60af0474310d2f7b0aTesthttps://doi.org/10.1111/j.1365-4632.2007.03276.xTest
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::88f728af5415961fad5b61639c68e511Testhttps://pubmed.ncbi.nlm.nih.gov/17222303Test
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_________::2a52cf4bb2b39ec58c54e283bf7bc57eTesthttps://doi.org/10.33589/15.6.201Test