Figure 3From: Validity and interexaminer reliability of a new method to quantify skin neurofibromas of neurofibromatosis 1 using paper framesSurvival-agreement plot for examiner A and examiner B using paper frames method (n = 92). (A) According to white (n = 61) and black (n = 31) skin color of patients with NF1; (B) According to the number of neurofibromas per 100 cm2 of skin: < 100 neurofibromas (n = 72) and ≥ 100 neurofibromas (n = 20).Back to article page