الوصول الحر: https://explore.openaire.eu/search/publication?articleId=pmid________::1535e50ffa19c36956a295cdc2239ea1Testhttps://pubmed.ncbi.nlm.nih.gov/19689063Test
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::aced8e4fb18a3e7e0187ea1a9deaec9eTesthttps://pubmed.ncbi.nlm.nih.gov/19530719Test