CLN6 and neuronal ceroid lipofuscinosis: Peripheral blood smears were prepared from 12-week old Cln6nclf mice, which model a variant late-infantile form of NCL (CLN6, MIM#601780) [43], [44], [45], and from postnatal day 7 (P7) Ctsd knock-out mice, which model the most severe form of NCL (congenital NCL; CLN10, MIM#610127) [46], [47].