Thank you Ward_X, SMiller and Dr. Blumberg for your time and reply.
I Agree with the above: There is so much extrapolation and assumptions involved in the decision to use Low titer O group in Hospital settings. Like for e.g. the proponents are showing military data as evidence, but the military uses WARM Fresh whole blood. Secondly, data is about penetrative trauma and whole blood is giving at site or within the golden hour. Urban hospital settings are so much different. Third, the proponents claim success of programs at Utah, Pittsburg, Mayo etc. However, so many questions (see below