الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_________::c607d7baa1b9b2204f25fec033c750efTesthttps://doi.org/10.1007/978-3-030-40842-8_24Test
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9abee63e5a03af4bf09f007c9c9f0ff4Testhttps://doi.org/10.21307/aoj-2020-080Test
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_________::24a281d9d037df22067b2a8adb27cf5eTesthttps://doi.org/10.1007/978-3-319-90152-7_16Test
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_________::74a086fc4c585eac64b793ed5e4485ccTesthttps://doi.org/10.1093/sleep/zsz067.964Test
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::9bb32bfcecfc5ffbf23153056f2839e6Testhttps://doi.org/10.1007/978-1-59745-115-4_13Test