which medical trial has the same medical trial type with a phase iii study to evaluate the safety and efficacy of ganciclovir (dihydroxypropoxymethyl guanine [dhpg]) treatment of symptomatic central nervous system (cns) congenital cytomegalovirus (cmv) infections.?
(AND medicine.medical_trial (JOIN medicine.medical_trial.type_of_trial (JOIN (R medicine.medical_trial.type_of_trial) m.03zbbyd)))