1/ In the 80's, diagnostic assays based on the Enzyme Linked Immunosorbent Assay (ELISA) method were already being developed for human and veterinary applications.
2/ With two competing companies in Europe, Inotech, Basil, Switzerland and Boehringer Mannheim, Germany, Dr. Sutula pioneered the concept of "reagent sets"-matched, quality-controlled antibodies and antibody-enzyme conjugates that can be used to prepare and perform one's own test.