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".
Lire la suite...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".
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