DNA damage from hydroxyurea therapy-variable-diversity-joining (VDJ) recombination events defined as the number of events per microgram of genomic DNA; Every 3 years [clinicaltrials_resource:744a04ea70ab71e32714d356b1ae79d6]

optional test

DNA damage from hydroxyurea therapy-variable-diversity-joining (VDJ) recombination events defined as the number of events per microgram of genomic DNA; Every 3 years [clinicaltrials_resource:744a04ea70ab71e32714d356b1ae79d6]

optional test