Peter arrived as a new assistant professor of pediatric neurology at Yale University in 1966. This was in the midst of the Reye’s syndrome peak of the late 1960s. Reye’s syndrome is a life-threatening pediatric disease characterized by progressive brain and liver damage in children, often after a viral illness. It became a rare condition after epidemiological studies suggested a link between aspirin use in children and the onset of Reye’s syndrome after a viral illness. The reduced rates of Reye’s syndrome are largely attributable to public health messaging to limit aspirin use in children, but until that change, it often fell to pediatric neurologists to keep Reye’s syndrome patients alive.