Mealey's (October 22, 2019, 4:25 PM EDT) -- SAN DIEGO — A federal judge in California on Oct. 21 found that a plaintiff cannot prove that two laboratories chose to use a defendant’s thyroid assay because it was briefly marketed as thyroid stimulating immunoglobin (TSI) only; the same day, however, the judge denied the defendant’s request for attorney fees (Quidel Corporation v. Siemens Medical Solutions USA Inc., No. 16-3059, S.D. Calif., 2019 U.S. Dist. LEXIS 181874)....