'The April 12, 1955 news of the Salk polio vaccine coincided with the 10th anniversary of this man's death'
FDR
APRIL: The April 12, 1955 news of the Salk polio vaccine coincided with the 10th anniversary of this mans death
The April 12, 1955 news of the Salk polio vaccine coincided with the 10th anniversary of this man's death
The April 12, 1955 news of the Salk polio vaccine coincided with the 10th anniversary of this man's death
APRIL
FDR
APRIL