الوصول الحر: https://escholarship.org/uc/item/8jf8v1cqTest
الوصول الحر: https://escholarship.org/uc/item/0bb509xtTest
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::5aa7be6ef15cb4078fdd6e157d55a810Testhttp://hdl.handle.net/11588/829226Test
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a9de9e056974fa7549527c6ad9314b16Testhttps://pubmed.ncbi.nlm.nih.gov/20711301Test
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::cc8d0090fcc341f67aa1d1f75a3dea41Testhttps://pubmed.ncbi.nlm.nih.gov/20842208Test
الإتاحة: https://doi.org/10.1007/s00415-006-0147-6Testhttp://scholarbank.nus.edu.sg/handle/10635/26730Test