Info on the next phase of treatment.

So, I thought this "Interim Maintenance" phase was supposed to be the hardest on him but I was corrected today.  Once we finish this phase we move on to "Delayed Intensification"  for 57 days, and then its "Maintenance" phase.  I was told today that "delayed intensification" is the one final blast to the cancer so it is considered the hardest phase on the kids from what his doctor said.  I wasn't excited to hear this, but I guess its better to know what he will be up against.  She said he is responding extremely well and he may just surprise us all in the next phase too!  :) I like that!!