FDA approves Dako’s PD-L1 test for use with Opdivo, although the Opdivo FDA label does not require use of a companion diagnostic: http://finance.yahoo.com/news/dako-agilent-technologies-company-announces-192100979.html Note: Dako’s PD-L1 test for Opdivo is not exactly the same as its PD-l1 test for Keytruda (#msg-117555993).