ACR	acute cellular rejection
BAL	bronchoalveolar lavage
BOS	bronchiolitis obliterans syndrome
CLAD	chronic lung allograft dysfunction
CT	computed tomography
CysLT	cysteinyl leukotrienes
ECP	extracorporeal photopheresis
FAM	fluticasone, azithromycin, and montelukast
FEV1	forced expiratory volume in 1 s
FVC	forced vital capacity
GERD	gastroesophageal reflux disease
GVHD	graft-versus-host disease
HCT	hematopoietic cell transplantation
HLA	human leukocyte antigen
ISHLT	International Society for Heart and Lung Transplantation
JAK	Janus kinase
L-CsA	liposomal cyclosporine
LT	leukotriene
LTx	lung transplantation
MBW	multiple breath washout
MRI	magnetic resonance imaging
NF	nuclear factor
PFT	pulmonary function testing
PIBO	postinfectious bronchiolitis obliterans
PRISm	preserved ratio impaired spirometry
PRM	parametric response mapping
RAS	restrictive allograft syndrome
SR-GVHD	steroid-refractory graft-versus-host disease
TLC	total lung capacity
TLI	total lymphoid irradiation