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13.Mark McCormick, Kan Chen, Priya Ramaswamy, Cynthia Kenyon. New genes that extend Caenorhabditis elegans lifespan in response to reproductive signals. Aging Cell: 11(2), 192-202.
14.Mette Soerensen, Serena Dato, Qihua Tan, Mikael Thinggaard, Rabea Kleindorp, Marian Beekman, Rune Jacobsen, H. Eka Suchiman, Anton J.M. de Craen, Rudi G.J. Westendorp, Stefan Schreiber, Tinna Stevnsner, Vilhelm A1. The text seems to consist of a list of references from different scientific articles. As such, there is no need for further processing.The text appears to be a list of references to scientific articles related to the study of aging and longevity. As such, it does not require any editing or processing.