1. Anti-HLA class I antibodies and pulmonary homograft function after the Ross procedure 
J.F.Matthias Bechtel, MD, Claus Bartels, MD, Claudia Schmidtke, MD, Wim Skibba, Michael Müller-Steinhardt, MD, Harald Klüter, MD, Hans-Hinrich Sievers, MD 
The Annals of Thoracic Surgery 
Volume 71, Issue 6, Pages (June 2001)
DOI: /S (01)

2. Fig 1
Scatterplot of the maximal transpulmonary homograft pressure gradient at rest against the length of follow-up. (+ = anti-HLA antibody positive; ○ = anti-HLA antibody-negative patients.)
The Annals of Thoracic Surgery  , DOI: ( /S (01) )

3. Fig 2
Scatterplot of the mean transpulmonary homograft pressure gradient at rest against the length of follow-up. (+ = anti-HLA antibody positive; ○ = anti-HLA antibody-negative patients.)
The Annals of Thoracic Surgery  , DOI: ( /S (01) )