Jaime Guevara-Aguirre, Valter Longo, and Laron study participants

Caption

Jaime Guevara-Aguirre (back left), Valter Longo (back right), and several of the Laron study participants at the USC Leonard Davis School of Gerontology in Los Angeles.

Credit

Courtesy Jaime Guevara-Aguirre and Valter Longo

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