( Rudolf Signer) Rudolf Signer (*17th March 1903 Herisau † 1st December 1990 Gümlingen ) contributed to the discovery of the DNA double helix. Professor for organic chemistry at Bern University from 1935 until 1972.
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Rudolf Signer Articles
Longevity & Fitness - Staying Young in Mind & Body.
Exercise focus for Seniors:
Gary Null, Ph.D. knows as much about aging powerfully as anyone on earth. His new book sums it all up.