What is the test for admitting an expert in a medical malpractice case?

"[T]rial courts enjoy a measure of latitude in determining the permissible scope of expert testimony; a ruling on admissibility of such evidence under Evidence Code section 352 is reviewed under an abuse of discretion standard." (People v. Moore (2011) 51 Cal.4th 386, 406.) " '[T]he foundational predicate for admission of the expert

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