P730: EVOLUTION OF IPSS-M RISK CATEGORIES IN PATIENTS WITH MYELODYSPLASTIC SYNDROMES FROM DIAGNOSIS TO HYPOMETHYLATING AGENT FAILURE oleh Kelly Chien, Samuel Urrutia, Ziyi LI, Rashmi Kanagal-Shamanna, Emmanuel Almanza, Tareq Abuasab, Georgina Gener, Alex Bataller, Alexandre Bazinet, Guillermo Montalban-Bravo, Nicholas Short, Elias Jabbour, Tapan Kadia, Farhad Ravandi, Gautam Borthakur, Danielle Hammond, Mahesh Swaminathan, Koji Sasaki, Sherry Pierce, Hagop Kantarjian, Guillermo Garcia-Manero