الإتاحة: https://doi.org/10.1001/archdermatol.2012.1830Testhttp://jamanetwork.com/journals/jamadermatology/fullarticle/1216971Test
الإتاحة: https://doi.org/10.1111/j.1469-0691.1997.tb00609.xTesthttps://api.elsevier.com/content/article/PII:S1198743X14644591?httpAccept=text/xmlTesthttps://api.elsevier.com/content/article/PII:S1198743X14644591?httpAccept=text/plainTest
الإتاحة: https://doi.org/10.1080/00365540500444660Test
الإتاحة: https://doi.org/10.3109/00365549609027184Test