in our multicenter studies for severe itp ( less than 30 x 10 ( 9 ) /liter platelet count ) in children , we observed the existence of at least two subgroups of itp , namely rapid responders ( greater than or equal to 30 x 10 ( 9 ) /liter platelet at 72 hours after the start of ivig ) and slow responders ( less than 30 x 10 ( 9 ) /liter platelet counts at 72 hours ) .
C0398650
itp
C0085297
ivig