Early Marrow Morphology		MRD Day 28	Marrow Morphology Day 28	COG Classification
Day 7	Day 14
M1	-	<0.1%	M1	Rapid response
M2/M3	M1	<0.1%	M1	Rapid response
-	M2/M3	<1.0%	M1	Slow response
Any	Any	0.1%–1.0%	M1	Slow response
Any	Any	>1.0%	M1, M2	Very slow response; extended induction
Any	Any	Any	M2	Very slow response; extended induction
Any	Any	Any	M3	Induction failure