الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::8a07b0a35f9909253000c198d1f1a4dbTesthttps://europepmc.org/articles/PMC4711978Test/
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::22b2927fbbadaad0e48a2399f2087cb6Testhttps://doi.org/10.1097/bpo.0b013e3181b7ff14Test