Mealey's (March 19, 2020, 11:55 AM EDT) -- NEW ORLEANS — The Fifth Circuit U.S. Court of Appeals on March 17 affirmed a district court’s ruling that the developer of a blood test used by health care providers does not have standing to sue a health insurer who refused insurance payments because the blood test developer failed to prove that it obtained valid and enforceable assignments of rights from plan participants (Cell Science Systems Corp. v. Louisiana Health Service Indemnity Co., No. 18-31034, 5th Cir., 2020 U.S. App. LEXIS 8349)....