_:vb50950597 . _:vb50950597 . _:vb50950597 . _:vb50950597 . _:vb50950597 . _:vb50950597 "A perichondritis of auricle with a sudden onset and a short course."^^ . _:vb50950597 "url:http://www.nlm.nih.gov/medlineplus/ency/article/001253.htm"^^ .