1. Economic outcome of off-pump coronary artery bypass surgery: a prospective randomized study 
Raimondo Ascione, MD, Clinton T Lloyd, Malcolm J Underwood, Attilio A Lotto, MD, Antonis A Pitsis, Gianni D Angelini 
The Annals of Thoracic Surgery 
Volume 68, Issue 6, Pages (December 1999)
DOI: /S (99)

2. Fig 1
Bed occupancy costs per patient at each dependency level. Data are presented as mean ± standard error of mean. p Values: ICU < 0.05, HDU < 0.05, ward = 0.09, total < 0.01.
The Annals of Thoracic Surgery  , DOI: ( /S (99) )

3. Fig 2
Costs for each determinant factor. Data are presented as mean ± standard error of mean. p Values: operation cost < 0.001, bed occupancy cost = 0.01, transfusion cost < 0.01, complications cost < 0.05, total <
The Annals of Thoracic Surgery  , DOI: ( /S (99) )