1. Expression in escherichia coli of chemically synthesized genes for human insulin;Goeddel;Proc. Natl. Acad. Sci. USA,1979
2. Human insulin produced by recombinant DNA technology: safety and hypoglycaemic potency in healthy men;Keen;Lancet,1980
3. D. Brandenburg, Insulin chemistry today: from the first synthesis to tailor-made derivatives and biosynthetic analogues, in: H. Rifkin, J.A. Colwell, S.I. Taylor (Eds.), Diabetes 1991, Elsevier, Amsterdam, 1991, pp. 76–81.
4. Pharmacokinetics of subcutaneous regular insulin in type I diabetic patients: assessment using a glucose clamp technique;Gardner;J. Clin. Endocrinol. Metab.,1986
5. Time–action characteristics of regular and NPH insulin in insulin-treated diabetics;Roy;J. Clin. Endocrinol. Metab.,1980