the medical trial with references safety and tolerance of intermittent intravenous and oral zidovudine therapy in human immunodeficiency virus-infected pediatric patients. pediatric zidovudine phase i study group. belong to what medical trial health authority?
(AND medicine.medical_trial_health_authority (JOIN medicine.medical_trial_health_authority.medical_trials (JOIN medicine.medical_trial.references m.040fvq9)))