الوصول الحر: http://kipublications.ki.se/Default.aspx?queryparsed=id:120316069Test
الإتاحة: https://doi.org/10.1038/nature22973Testhttp://hdl.handle.net/21.11116/0000-0000-BC42-2Testhttp://hdl.handle.net/21.11116/0000-0000-BC44-0Test
الإتاحة: https://doi.org/10.1038/35057062Testhttps://hdl.handle.net/2027.42/62798Testhttp://www.ncbi.nlm.nih.gov/sites/entrez?cmd=retrieve&db=pubmed&list_uids=11237011&dopt=citationTest