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LSMEANS of performance statistics for binary assessment of healed caudal keel bone fractures (absent: no callus formation, present: callus formation). E vs. I: main effect of experience (E) vs. inexperience (I) prior to the experiment, 1 vs. 2: main effect of session, *P < 0.05, # P < 0.10. NPV = negative predictive value.
