<prompt> Hormones are best assessed by?FlowcytometryElectrophoresisELISARIA  <response>: Radioimmunoassay RIA permits the measurement of analytes up to picogram quantities. RIA and its modifications have versatile applications in various areas of biology and medicine, including quantitation of hormones, drugs, tumor markers. Reference : Anathanarayan panikers 9th edition, pg no:113 p 