1. Oral Pollen Therapy in Ragweed Pollinosis;Feinberg;J.A.M.A,1940
2. Bohner, C. B.: Discussion of paper by Zeller.
3. Asthma and Hay Fever in Theory and Practice;Thommen,1931
4. The Oral Administration of Pollen: A Clinical Report;Black;J. Lab. & Clin. Med,1928
5. Oral Pollen Therapy;Bernstein;J. Allergy,1937