“…These results are in marked contrast to those obtained with the intradermal method of skin testing where positive bronchial responses have been found in a variable percentage of patients with positive intradermal skin tests and in from I";, to 40% of patients in whom skin reactivity was classed as negative (Nilsson & Kaude, 1960;Colldahl. 1967;Aas, 1970;Maier, Orion & Deviller, 1970;Gayrard et al, 1972). However, as intradermal tests tend to produce more nonspecifically positive reactions than do prick tests (Pepys, 1972), as the criteria that were used in these studies to define positive cutaneous and bronchial responses differed, and as the degree of control over those variables which influence the assessment of cutaneous and bronchial reactivity varied widely, these differences in the observed relationship between the allergic reactivity of the skin and the bronchi are not surprising.…”