Combined automated cell and flow cytometric analysis enables recognition of persistent polyclonal B-cell lymphocytosis (PPBL), a study of 25 patients. - Schmidt-Hieber, M.; Burmeister, T.; Weimann, A.; Nagorsen, D.; Hofmann, W. K.; Thiel, E.; Schwartz, S. (Annals of Hematology, 2008)