"Rare disease turns mountaineers blue". Phoenix, Arizona: Arizona Republic. November 7, 1974. p. 12. Archived from the original on April 15, 2019. Retrieved April 3, 2019 – via Newspapers.com.
"Rare disease turns mountaineers blue". Phoenix, Arizona: Arizona Republic. November 7, 1974. p. 12. Archived from the original on April 15, 2019. Retrieved April 3, 2019 – via Newspapers.com.