1. The impact of allergic rhinitis on bronchial asthma
Jonathan Corren, MD 
Journal of Allergy and Clinical Immunology 
Volume 101, Issue 2, Pages S352-S356 (February 1998)
DOI: /S (98)
Copyright © 1998 Mosby, Inc. Terms and Conditions

2. Fig. 1
PC20 values expressed as milligrams per milliliter of methacholine for individual subjects at baseline and after 6 weeks of study. Geometric mean values are denoted by horizontal bars with 95% confidence intervals. Intergroup difference comparing change from baseline, p = Adapted with permission from Corren J, et al. J Allergy Clin Immunol 1992;90:250-6.
Journal of Allergy and Clinical Immunology  , S352-S356DOI: ( /S (98) )
Copyright © 1998 Mosby, Inc. Terms and Conditions

3. Fig. 2
Changes in PC20 from baseline 0800 (8 am) at 1200 (12 pm) and 1600 (4 pm) in individual subjects after nasal challenge. Data are expressed in doubling dilutions of methacholine; means are indicated by horizontal bars (n = 10 for both treatments). Adapted with permission from Corren J, et al. J Allergy Clin Immunol 1992;89:611-8.
Journal of Allergy and Clinical Immunology  , S352-S356DOI: ( /S (98) )
Copyright © 1998 Mosby, Inc. Terms and Conditions

4. Fig. 3
Changes of FEV1 after exercise. Exercise was performed with mouth breathing, nasal breathing, and spontaneous breathing. Mean ± SE values are shown. Adapted with permission from Shturman-Ellstein R, et al. Am Rev Resp Dis 1978;118:65-73.
Journal of Allergy and Clinical Immunology  , S352-S356DOI: ( /S (98) )
Copyright © 1998 Mosby, Inc. Terms and Conditions