Journals / Balkan Medical Journal / 2019 / Cilt: 36 - Sayı: 2Bull’s Head Sign in a Patient with SAPHO SyndromeHakan EMMUNGİL, Ufuk İLGEN, Sezin TURANJournalBalkan Medical JournalIssue2019 · Cilt: 36 - Sayı: 2Pages139–140DOI—