AUTHOR=Bartke Andrzej , Brown-Borg Holly TITLE=Mutations Affecting Mammalian Aging: GH and GHR vs IGF-1 and Insulin JOURNAL=Frontiers in Genetics VOLUME=12 YEAR=2021 URL=https://www.frontiersin.org/journals/genetics/articles/10.3389/fgene.2021.667355 DOI=10.3389/fgene.2021.667355 ISSN=1664-8021