الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::1bad1174ff7d024eb039e314d1f44c41Testhttps://doi.org/10.1016/s0140-6736Test(22)01424-6
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4abeb93e86a71fc5b63294bcc1954f6fTesthttps://pubmed.ncbi.nlm.nih.gov/18720123Test
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_________::6d8450f4e380a5db2f67109954fefef8Testhttps://doi.org/10.1016/j.ejso.2012.02.076Test