1. Autologous blood donation with recombinant human erythropoietin in anemic patients 
Hiroshi Kiyama, MD, Nagahisa Ohshima, MD, Takao Imazeki, MD, Takashi Yamada, MD 
The Annals of Thoracic Surgery 
Volume 68, Issue 5, Pages (November 1999)
DOI: /S (99)

2. Fig 1
Preoperative hemoglobin levels in group 1 increased significantly from before first donation to 7 days before surgery. The mean hemoglobin level at 7 days before surgery was significantly higher in group 1. ap < 0.05 in comparison between both groups. bp < 0.05 versus 21 days before surgery.
The Annals of Thoracic Surgery  , DOI: ( /S (99) )

3. Fig 2
The number of reticulocytes began to increase in group 1 significantly, although group 2 did not show a significant increase. The reticulocyte count at just before surgery was significantly higher in group 1. ap < in comparison between both groups. bp < 0.01 versus 21 days before operation.
The Annals of Thoracic Surgery  , DOI: ( /S (99) )

4. Fig 3
Estimated hemoglobin increase (EHI) in group 1 was significantly higher than in group 2 at 7 days before operation and just before operation. ap < in comparison between both groups.
The Annals of Thoracic Surgery  , DOI: ( /S (99) )