AUTHOR=Johnson Ian TITLE=Age-related neurodegenerative disease research needs aging models JOURNAL=Frontiers in Aging Neuroscience VOLUME=7 YEAR=2015 URL=https://www.frontiersin.org/articles/10.3389/fnagi.2015.00168 DOI=10.3389/fnagi.2015.00168 ISSN=1663-4365