In Nesje v. Metropolitan Coach Lines (1956) 140 Cal.App.2d 807, the court erroneously admitted test results of a blood sample, presumably that of the decedent, because there was no evidence linking the sample to the decedent. The label on the bottle identified the embalmer who had taken the sample and the person who had brought the sample to the technician. There was no evidence about where the information on the label came from or who wrote it and no evidence that the sample had been taken from the decedent. (Id. at p. 810.)