الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0b57767d34669120026a102a266c5da4Testhttps://pubmed.ncbi.nlm.nih.gov/3593777Test
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::f844900be2290b6389d63f36f8f12687Testhttps://pubmed.ncbi.nlm.nih.gov/7388042Test