الإتاحة: https://doi.org/10.1016/j.ejpn.2016.11.016Testhttps://api.elsevier.com/content/article/PII:S109037981630246X?httpAccept=text/plainTesthttps://api.elsevier.com/content/article/PII:S109037981630246X?httpAccept=text/xmlTest
الإتاحة: https://doi.org/10.1016/s1090-3798Test(15)30378-0https://api.elsevier.com/content/article/PII:S1090379815303780?httpAccept=text/xmlTesthttps://api.elsevier.com/content/article/PII:S1090379815303780?httpAccept=text/plainTest