1. Block M, Jacobson LO, Bethard WF . Preleukemic acute human leukemia. J Am Med Assoc 1953; 152: 1018–1028.
2. Koeffler HP . Myelodysplastic syndromes (preleukemia). Semin Hematol 1986; 23: 284–299.
3. Greenberg P, Cox C, LeBeau MM, Fenaux P, Morel P, Sanz G et al. International scoring system for evaluating prognosis in myelodysplastic syndromes. Blood 1997; 89: 2079–2088.
4. Brunning ROA, Germing U, Beau MM, Porwit A, Baumann I et al Myelodysplastic syndromes. In: Swerdlow SH International Agency for Research on Cancer, World Health Organization (eds). WHO classification of Tumours of Haematopoietic and Lymphoid Tissues; World Health Organization Classification of Tumours, 4th edn. International Agency for Research on Cancer: Lyon, France, 2008; p 439.
5. Tefferi A, Vardiman JW . Myelodysplastic syndromes. N Engl J Med 2009; 361: 1872–1885.