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. is found in which medical trials?
(AND medicine.medical_trial_type (JOIN medicine.medical_trial_type.medical_trials m.03zbbyd))