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Table 6 Methods of Blood Conservation

From: Outcomes in cardiac surgery in 500 consecutive Jehovah's Witness patients: 21 year Experience

Procedure Group A n = 250 Group B n = 250 P
  1998-2003 2003-2012  
Retro-priming 0 250 <0.001
Erythropoietin 0 203 <0.001
Extra-corporal mini-circulation 0 152 <0.001