Anti thrombin III protin C and protin S plasma levels in acute leukamia in childern

the aim of study is to estimate the leveles of PC,PS and antithrombin III activity in plasma in differnat types of acute childhood leukemia(ALL&ANIL)at diagonsis and at CR and to determine whether these majoir coagulation inhibitors play a role in the hemorrhagic manifestation of this diseases. the haemorrhagic tendency wich is common in acute leukemia has sitmulated the investigations in coagulation mechanism.