الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::3a38c54a901c99ff182eb88ce06c6b64Testhttps://doi.org/10.1007/s11845-021-02716-xTest
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::0b99c88608dd50c349411d4e669ba00bTesthttps://doi.org/10.1055/s-0040-1713928Test