Halbert L. Dunn
Halbert L. Dunn, M.D. (1896–1975) was the leading figure in establishing a national vital statistics system in the United States and is known as the "father of the wellness movement".
Per saperne di più...Halbert L. Dunn, M.D. (1896–1975) was the leading figure in establishing a national vital statistics system in the United States and is known as the "father of the wellness movement".
Per saperne di più...