IGF-1 Link: Dr. Jaime Guevara-Aguirre, Dr. Valter Longo, Laron Syndrome Patient Merci Valarezo. (Credit: Jake Whitman)

IGF-1 Link: Dr. Jaime Guevara-Aguirre, Dr. Valter Longo, Laron Syndrome Patient Merci Valarezo. (Credit: Jake Whitman)

Dr. Valter Longo (top), Dr. Jaime Guevara-Aguirre with Laron Syndrome patient Merci Valarezo. (Credit: Jake Whitman)