الإتاحة: https://doi.org/10.1038/bjc.2014.555Testhttp://hdl.handle.net/11568/759619Testhttp://www.nature.com/bjc/index.htmlTest
الإتاحة: https://doi.org/10.1007/s00147-002-0510Test-1http://hdl.handle.net/11568/871795Test
الإتاحة: https://doi.org/10.1016/S1072-7515Test(99)00135-0http://hdl.handle.net/11568/872235Testhttp://www.sciencedirect.com/science/article/pii/S1072751599001350Test
الإتاحة: http://hdl.handle.net/11568/872261Test