A previous study developed a clinical score for the prediction of POMC after taking into account MG-associated compromise of respiratory function, disease duration, and extent of muscle involvement.[15] The clinical predictive score, which included vital capacity <80% (yes = 3, no = 0), disease duration <3 months (yes = 2, no = 0), and bulbar symptoms immediately before thymectomy (yes = 1, no = 0), yields a total score ranging from 0 to 6.[15] The probability of postoperative crisis was 0.9% and 25.9% for low (less than 3) and high (3 or more) score groups, respectively. The gene discussed is POMC; the disease is myasthenia gravis.