Question: is this a 2) strong advice, 1) weak advice 0) no advice?

Despite the efficacy of aprotinin and epsilon-aminocaproic acid shown in the present study, the blood requirements were not significantly different from those that are found when transfusions are restricted, autotransfusions are used, and blood from the operative field and extracorporeal circuit is concentrated and reinfused. 
user
This is no advice
assistant