'''[http://jama.jamanetwork.com/pdfaccess.ashx?ResourceID=526884&PDFSource=13 Life Extension ''(PDF)''] (engl.)'''
'''[http://jama.jamanetwork.com/pdfaccess.ashx?ResourceID=526884&PDFSource=13 Life Extension ''(PDF)''] (engl.)'''
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"It is important for physicians to be aware of the contents of [http://en.wikipedia.org/wiki/Life_extension '''Life Extension'''] in order to properly counsel their patients who have bought this best sellers' list [http://en.wikipedia.org/wiki/Life_Extension:_A_Practical_Scientific_Approach '''book''']."
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"It is important for physicians to be aware of the contents of [http://en.wikipedia.org/wiki/Life_extension '''Life Extension'''] in order to properly counsel their patients who have bought this best sellers' list [http://en.wikipedia.org/wiki/Life_Extension:_A_Practical_Scientific_Approach '''book'''].[...]" Von [http://jn.nutrition.org/content/134/5/1007.full '''Frederick J. Stare'''], [http://virginiaaronsonwriter.com/index.html '''Virginia Aronson''']