1. Lung Volume Reduction Surgery in the United States From 2007 to 2013
Amy H. Attaway, MD, Umur Hatipoğlu, MD, Sudish Murthy, MD, PhD, Joe Zein, MD, FCCP 
CHEST 
Volume 155, Issue 5, Pages (May 2019)
DOI: /j.chest
Copyright © 2019 American College of Chest Physicians Terms and Conditions

2. Figure 1
Trends in LVRS in the United States from 2007 to Solid line represents the best fit linear regression model (P = .0016, R2 = 0.72). LVRS = lung volume reduction surgery.
CHEST  , DOI: ( /j.chest )
Copyright © 2019 American College of Chest Physicians Terms and Conditions