1. Zinc protamine insulin; a clinical trial of the new preparation;Lawrence;Brit. M. J.,1937
2. The use of a mixture of ordinary and protamine insulin;Graham;Acta med. Scandinav.,1938
3. Clinical Diabetes Mellitus and Hyperinsulinism;Wilder,1940
4. A Primer for Diabetic Patients. An Outline of Treatment for Diabetes with Diet, Insulin and Protamine-zinc Insulin, Including Directions and Charts for the Use of Physicians in Planning Diet Prescriptions;Wilder,1941
5. Clinical experience with mixtures of protamine zinc and unmodified insulins; a preliminary report;Hildebrand;Arch. Int. Med.,1943