Fig. 3From: Nasal Chondromesenchymal Hamartoma (NCMH): a systematic review of the literature with a new case reportFour-phase flow diagram of systematic review in accordance with PRISMA guidelines * Two individual publications of single case-reports were excluded from analysis as these had previously been published, Schultz et al. [2] and Kang et al. [3].** See Table 1 Back to article page