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:fef556f45049086f2c7bfebbbfa81019]

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:fef556f45049086f2c7bfebbbfa81019]

optional test