الإتاحة: https://doi.org/10.1186/1740-2557-3-3Testhttp://hdl.handle.net/10440/104Testhttp://digitalcollections.anu.edu.au/handle/10440/104Testhttps://openresearch-repository.anu.edu.au/bitstream/10440/104/3/Hawkins_Cerebrovascular2006.pdf.jpgTest
الإتاحة: https://doi.org/10.11606/T.5.2016.tde-20052016-160232Testhttp://www.teses.usp.br/teses/disponiveis/5/5153/tde-20052016-160232Test/
الإتاحة: https://www.wbc.poznan.pl/dlibra/publication/edition/126305/contentTest
الإتاحة: https://lup.lub.lu.se/record/605851Test