In 1960 he traveled with Dr. Avioli to Tangier Island for further investigation .
Donald Fredrickson , then head of the Molecular Disease Branch , became aware of the case and had a hunch that the original diagnosis was incorrect .
In 1960 Donald Fredrickson traveled with Dr. Avioli to Tangier Island for further investigation .
Donald Fredrickson , then head of the Molecular Disease Branch , became aware of the case and had a hunch that the original diagnosis was incorrect .