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".
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". (en)
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". (en)