الوصول الحر: https://doaj.org/article/d088c265603049e0a0886f0950e19630Test
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=doi_dedup___::b0ffd146b90e93f01069e57c3b16bf89Testhttp://link.springer.com/article/10.1186/s12944-019-1030-7Test