From: SURF: identifying and allocating resources during Out-of-Hospital Cardiac Arrest
\({ae}_{11}\)
\({ae}_{12}\)
\(ae_{21}\)
\(ae_{22}\)
\(u_1\)
12
457
68
87
\(u_2\)
478
57
95
35
\(u_3\)
75
69
41
74