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a. Pre- and post-test probability for a non-vital pulp finding (prevalence 49%) before and after applying cold test.
LR+ = 4.35 ______
LR− = 0.14 _ _ _ _ _
b. Pre- and post-test probability for a non-vital pulp finding (prevalence 49%) before and after applying percussion test.
LR+ = 1.22 ______
LR− = 0.69 _ _ _ _ _
