URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::861449ef2908a3ce5997179055465ebfhttps://doi.org/10.1016/0167-8140(92)90331-n
URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::c4bef5d1234534918d4984524d1ab482https://doi.org/10.1016/0360-3016(80)90227-8
URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::2fc2ede1b90f6ff7c9fd27f69d5b76f7https://doi.org/10.1016/0090-8258(76)90034-2
URL الوصول: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::4107a2179b92c3d3866127cd39a1c22bhttps://pubmed.ncbi.nlm.nih.gov/6731344