Incorporation and analysis of ultrasonically nebulized distilled water challenges in an epidemiologic study of asthma and bronchial reactivityHOPP, R. J; CHRISTY, J; BEWTRA, A. K et al.Annals of allergy. 1988, Vol 60, Num 2, pp 129-133, issn 0003-4738Article

Effect of terfenadine on neutrophil and eosinophil chemotactic activities after inhalation of platelet-activating factor in vivo and on neutrophil chemotaxis in vitroOKADA, C; HOPP, R. J; MIYAGAWA, H et al.International archives of allergy and applied immunology. 1992, Vol 97, Num 3, pp 181-186, issn 0020-5915Article

Distribution of methacholine inhalation challenge responses in a selected adult populationLANG, D. M; HOPP, R. J; BEWTRA, A. K et al.Journal of allergy and clinical immunology. 1987, Vol 79, Num 3, pp 533-540, issn 0091-6749Article

Genetic analysis of allergic disease in twinsHOPP, R. J; BEWTRA, A. K; WATT, G. D et al.Journal of allergy and clinical immunology. 1984, Vol 73, Num 2, pp 265-270, issn 0091-6749Article

Predictive value of airway reactivityTOWNLEY, R. G; HOPP, R. J; BEWTRA, A. K et al.Journal of allergy and clinical immunology. 1990, Vol 86, Num 4, pp 650-652, issn 0091-6749, 2Conference Paper

Methacholine inhalation challenge studies in a selected pediatric populationHOPP, R. J; BEWTRA, A. K; NAIR, N. M et al.The American review of respiratory disease. 1986, Vol 134, Num 5, pp 994-998, issn 0003-0805Article

The effect of age on methacholine responseHOPP, R. J; BEWTRA, A; NAIR, N. M et al.Journal of allergy and clinical immunology. 1985, Vol 76, Num 4, pp 609-613, issn 0091-6749Article

Specificity and sensitivity of methacholine inhalation challenge in normal and asthmatic childrenHOPP, R. J; BEWTRA, A. K; NAIR, N. M et al.Journal of allergy and clinical immunology. 1984, Vol 74, Num 2, pp 154-158, issn 0091-6749Article

Longitudinal measurement of airway hyperresponsiveness in selected subjects with persisting pulmonary symptomsHOPP, R. J; BIVEN, R. A; DEGAN, J. A et al.The Journal of asthma. 1994, Vol 31, Num 3, pp 177-186, issn 0277-0903Article

A controlled, double-blind study of the effect of Quazolast on nasal challenge with ragweed antigenDAVE, N. K; MCMAHON, S. C; GRUBBE, R. E et al.Annals of allergy. 1990, Vol 65, Num 4, pp 298-302, issn 0003-4738, 5 p.Article

The presence of airway reactivity before the development of asthmaHOPP, R. J; TOWLEY, R. G; BIVEN, R. E et al.The American review of respiratory disease. 1990, Vol 141, Num 1, pp 2-8, issn 0003-0805, 7 p.Article

Effect of terfenadine on cold air-induced bronchospasmBEWTRA, A. K; HOPP, R. J; NAIR, N. M et al.Annals of allergy. 1989, Vol 62, Num 4, pp 299-301, issn 0003-4738Article

Effect of terfenadine on the bronchoconstriction induced by ultrasonically nebulized distilled waterHOPP, R. J; BEWTRA, A. K; NAIR, N. M et al.Annals of allergy. 1988, Vol 61, Num 1, pp 13-16, issn 0003-4738Article

Interpretation of the results of methacholine inhalation challenge testsHOPP, R. J; WEISS, S. J; NAIR, N. M et al.Journal of allergy and clinical immunology. 1987, Vol 80, Num 6, pp 821-830, issn 0091-6749Article