What is the scope of discovery in a personal injury case?

[Citation.] Admissibility is not the test and information, unless privileged, is discoverable if it might reasonably lead to admissible evidence. [Citation.] The phrase reasonably calculated to lead to the discovery of admissible evidence makes it clear that the scope of discovery extends to any information that reasonably might lead to other evidence that would be admissible at trial. Thus, the scope of permissible discovery is one of reason, logic and common sense. [Citation.] These rules are applied liberally in favor of discovery. (Lipton v. Superior Court (1996) 48 Cal.App.4th 1599, 16111612, 56 Cal.Rptr.2d 341.)