1. Barbee RA, Dodge R, Lebowitz ML, and Burrows B. The epidemiology of asthma, Chest 1985; 87(Suppl.):218.
2. Von Pirquet C. Allergic. Münch. Med. Wochenschr. 1906; 52:1457. Translated from the German original by Carl Prausnitz, in Clinical Aspects of Immunology (Gell PGH and Coombs RRA, eds.), F.A. Davis, Philadelphia, PA, 1963.
3. Blackley CH. Experimental Researches on the Causes and Nature of Catarrhus Aestivus (Hay Fever or Hay-Asthma), 1st ed., Ballière, Tindall and Cox, London, 1873.
4. Prausnitz C and Küstner H. Studien über Überempfindlichkeit, Centralbl. f. Bakteriol. 1921; 1 Abt. Orig. 86:160–169. Translated from the German by Carl Prausnitz, in Clinical Aspects of Immunology (Gell PGH and Coombs RRA, eds.), Blackwell Scientific, Oxford, 1962; pp. 808-816.
5. Cooke RA and Van der Veer A, Jr. Human sensitization. J. Immunol. 1916; 1:201.