References
Systemic mastocytosis (SM) associated with chronic eosinophilic leukemia (SM-CEL): detection of FIP1L1/PDGFRalpha, classification by WHO criteria, and response to therapy with imatinib. Florian S, Esterbauer H, Binder T, Müllauer L, Haas OA, Sperr WR, Sillaber C, Valent P. Leuk Res. 2006 Sep;30(9):1201-5. PMID: 16406018