1. Early Fundoplication Prevents Chronic Allograft Dysfunction in Patients with Gastroesophageal Reflux Disease 
Edward Cantu, MD, James Z. Appel, MD, Matthew G. Hartwig, MD, Hiwot Woreta, BA, Cindy Green, PhD, Robert Messier, MD, PhD, Scott M. Palmer, MD, MPH, R.Duane Davis, MD 
The Annals of Thoracic Surgery 
Volume 78, Issue 4, Pages (October 2004)
DOI: /j.athoracsur

2. Fig 1
Group segregation methods: (A) ICD-9 method and (B) pH method. (Hx = history; ICD = international classification of diseases.)
The Annals of Thoracic Surgery  , DOI: ( /j.athoracsur )

3. Fig 2
Freedom from BOS in ICD-9 segregated groups. ■ = no history of reflux; □ = reflux, no surgery; ▴ = reflux, early surgery; ▵ = reflux, late surgery. (BOS = bronchiolitis obliterans syndrome; ICD = international classification of diseases.)
The Annals of Thoracic Surgery  , DOI: ( /j.athoracsur )

4. Fig 3
Freedom from BOS in pH confirmed subgroups. ■ = normal pH study; □ = reflux, no surgery; ▴ = reflux, early surgery; ▵ = reflux, late surgery; ⊥ = unknown. (BOS = bronchiolitis obliterans syndrome.)
The Annals of Thoracic Surgery  , DOI: ( /j.athoracsur )

5. Fig 4
Survival in ICD-9 segregated groups. ■ = no history of reflux; □ = reflux, no surgery; ▴ = reflux, early surgery; ▵ = reflux, late surgery. (BOS = bronchiolitis obliterans syndrome; ICD = international classification of diseases.)
The Annals of Thoracic Surgery  , DOI: ( /j.athoracsur )

6. Fig 5
Survival in pH confirmed subgroups. ■ = normal pH study; □ = reflux, no surgery; ▴ = reflux, early surgery; ▵ = reflux, late surgery; ⊥ = unknown.
The Annals of Thoracic Surgery  , DOI: ( /j.athoracsur )