In this study, researchers found that among 185 patients with lymphocytosis, progressive lymphocytosis developed in 51 (28%) and progressive CLL developed in 28 (15%).

• 在这项研究中，研究人员们发现在185位淋巴球增生病患中，51位（28%25）淋巴球增生越来越严重，而28位（15%25）发展成逐渐恶化的CLL。