NASHVILLE, Tenn. -- Racial biases persist in the use of pulse oximetry devices for patients with acute hypoxemic respiratory failure (AHRF) requiring very high levels of oxygen support, a ...

Objective: To investigate the correlation between arterial oxygen saturation (SaO 2) and the occurrence of cerebral infarction (CI) in patients with chronic obstructive pulmonary disease (COPD), and ...

This paper surveys econometric innovations related to differences-in-differences estimators and to event-study models with time-varying treatment effects. Our discussion highlights tricky ...