{Reference Type}: Editorial {Title}: Going Down, Dooby Doo Down, Down: Identifying Rapid Spirometry Decline. {Author}: Bush A; {Journal}: Am J Respir Crit Care Med {Volume}: 208 {Issue}: 10 {Year}: 2023 11 15 {Factor}: 30.528 {DOI}: 10.1164/rccm.202307-1212ED