Fig. 4From: Factors affecting improvement of neurologic status evaluated by Quantitative Myasthenia Gravis Score for patients with thymomatous myasthenia gravis after extended thymectomyKaplan–Meier survival analysis of reaching a second 3 point reduction in Quantitative Myasthenia Gravis Score. Patients were grouped by age (A) and Masaoka-Koga stage (B)Back to article page