الإتاحة: https://doi.org/10.1111/anae.16324Testhttps://hdl.handle.net/10281/486759Test
الإتاحة: https://doi.org/10.1093/bjs/znac069Testhttps://hdl.handle.net/10447/592741Test
الإتاحة: https://doi.org/10.1093/bjs/znab259.1004Testhttps://academic.oup.com/bjs/article-pdf/108/Supplement_6/znab259.1004/50763223/znab259.1004.pdfTest
الإتاحة: https://doi.org/10.1111/codi.16737Testhttps://hdl.handle.net/11573/1693889Test