A History of Nutrition-Chapter 25 manuscript "The Discovery of Vitamin K"

A History of Nutrition-Chapter 25 manuscript "The Discovery of Vitamin K", Box: 2, Folder: 71. Personal Papers of Elmer V. McCollum, PP 120. University of Kansas. Kenneth Spencer Research Library. https://archives.lib.ku.edu/repositories/3/archival_objects/188873 Accessed December 25, 2025.