الإتاحة: https://doi.org/10.1371/journal.pone.0040949Testhttp://hdl.handle.net/11577/3323968Test
الوصول الحر: https://explore.openaire.eu/search/publication?articleId=pmid_dedup__::92aaa104c86eefda68200a5ab0c194a0Testhttp://www.scopus.com/inward/record.url?eid=2-s2.0-85006214758&partnerID=MN8TOARSTest