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2. Chromogenic substances for horseshoe crab clotting enzyme. Its application for the assay of bacterial endotoxins;Iwanaga;Haemostasis,1978
3. A new chromogenic substrate method for assay of bacterial endotoxins using Limulus hemocyte lysate;Harada;Prog Clin Biol Res,1979
4. Automated limulus amebocyte lyste (LAL) test for endotoxin assay using a new Toxinometer ET-201;Oishi;J Parenter Sci Technol,1981
5. A new chromogenic endotoxin-specific assay using recombined limulus coagulation enzymes and its clinical applications;Obayashi;Clin Chim Acta,1985