الإتاحة: https://doi.org/10.1007/s00464-018-6281-2Testhttps://openaccess.sgul.ac.uk/id/eprint/110663Test/https://openaccess.sgul.ac.uk/id/eprint/110663/1/Griffiths2019_Article_UtilisationOfAnOperativeDiffic.pdfTest
الوصول الحر: https://doaj.org/article/7e4eb33ac3a248df9a73169ba4965d27Test
الإتاحة: http://livrepository.liverpool.ac.uk/3044397Test/http://livrepository.liverpool.ac.uk/3044397/1/El-Sharkawy2019_Article_TheCholecystectomyAsADayCaseCA.pdfTest
الإتاحة: http://livrepository.liverpool.ac.uk/3006416Test/http://livrepository.liverpool.ac.uk/3006416/1/Collaborative-2016-British_Journal_of_Surgery.pdfTest
الإتاحة: http://livrepository.liverpool.ac.uk/3042154Test/