Mentally distressed woman warned cops of suicide: Drives motor vehicle on rail tracks for 7km in close proximity to Hyderabad; watch Hemagglutinin inhibition (HI) assay: The HI assay checks for antibodies for the hemagglutinin of the precise influenza virus utilizing purple blood cells (RBC). Multiple forms of RBCs were assessed https://www.dailypioneer.com/2013/sports/aditya-mehta-enters-round-of-16-at-indian-open.html