Historically High Excess Mortality During the COVID-19 Pandemic in Switzerland, Sweden, and Spain.

Background: Excess mortality quantifies the overall mortality impact of a pandemic. Mortality data have been accessible for many countries in recent decades, but few continuous data have been available for longer periods.

Objective: To assess the historical dimension of the COVID-19 pandemic in 2020 for 3 countries with reliable death count data over an uninterrupted span of more than 100 years.

Functional Role of the Cerebellum in Parkinson Disease: A PET Study.

Objectives: To test for cerebellar involvement in motor and nonmotor impairments in Parkinson disease (PD) and to determine patterns of metabolic correlations with supratentorial brain structures, we correlated clinical motor, cognitive, and psychiatric scales with cerebellar metabolism.

Methods: We included 90 patients with PD. Motor, cognitive, and psychiatric domains were assessed, and resting-state FDG-PET metabolic imaging was performed.