Symptomatology and racial disparities among children undergoing universal preoperative COVID‐19 screening at three US children's hospitals: Early pandemic through resurgence. - Adler, Adam C.; Shah, Apurva S.; Blumberg, Todd J.; Fazal, Faris Z.; Chandrakantan, Arvind; Ellingsen, Kyle; Nathanson, Brian H.; Lin, Elaina E.; Ungern‐Sternberg, Britta von (Pediatric Anesthesia, 2021)