Mentally Distressed lady warned cops of suicide: Drives car on rail tracks for 7km in close proximity to Hyderabad; watch Hemagglutinin inhibition (Hello) assay: The HI assay tests for antibodies to the hemagglutinin of the precise influenza virus using pink blood cells (RBC). Many forms of RBCs were being assessed https://www.dailypioneer.com/2018/sports/sindhu-enters-qf-srikanth-out.html