“…1). 16–25,27–29,33–36,39,41–43,45–48,50–53,58–61,63–66,68,69 Moreover, to calculate the prevalence of cSCC after CLL diagnosis, we excluded case reports and case series in order to avoid overestimation and 16 articles including 612/19,015 patients developing cSCC after CLL diagnosis were finally considered 18,27,42,43,45,51–53,58,60,61,63–66,68 . The prevalence of cSCC after CLL diagnosis was 3.2%, and the average number of cSCC per patient was 2.3.…”