'His vaccine was announced safe in April '55, the 10th anniversary of FDR's death'
Dr. Jonas Salk
MEDICINE: His vaccine was announced safe in April '55, the 10th anniversary of FDRs death
His vaccine was announced safe in April '55, the 10th anniversary of FDR's death
His vaccine was announced safe in April '55, the 10th anniversary of FDR's death
MEDICINE
Dr. Jonas Salk
MEDICINE