Radon K, Windstetter D, Eckart J, et al. 2004. Farming exposure in childhood, exposure to markers of infections and the development of atopy in rural subjects. Clin Exp Allergy, 34:1178–83. Riedl M, Diaz-Sanchez D. 2005. Biology of diesel exhaust effects on respiratory function. J Allergy Clin Immunol, 115:221–8. Rosenwasser LJ, Klemm DJ, Dresback JK, et al. 1995. Promoter polymorphism in the chromosome 5 gene cluster in asthma and atopy. Clin Exp Allergy, 25(Suppl 2):74–8. Sandin A, Bjorksten B, Braback L. 2004. Development of atopy and wheezing symptoms in relation to heredity and early pet keeping in a Swedish birth cohort. Pediatr Allergy Immunol, 15:316–22. Schonberger HJ, Dompeling E, Knottnerus JA, et al. 2005. Prenatal exposure to mite and pet allergens and total serum IgE at birth in high-risk children. Pediatr Allergy Immunol, 16:27–31. Sheikh A, Huwitz B. 2001. House dust mite avoidance measures for perennial allergic rhinitis. Cochrane Database Syst Rev, 4:CD001563. Shek L, Tay A, Chew FT, et al. 2001. Genetic susceptibility to asthma and atopy among Chinese in Singapore – linkage to markers on chromosome 5q31-33. Allergy, 56:749–53. Spector SL. 1997. Overview of comorbid associations of allergic rhinitis. J Allergy Clin Immunol, 99(Suppl):773–80. Strachan DP. 1989. Hay fever, hygiene, and household size. BMJ, 299:1259–60. Tan EC, Lee BW, Tay AWN, et al. 1999. Interleukin-4 receptor variant Q576R: ethnic differences and association with atopy. Clin Genet, 56:333–4. Terreehorst I, Hak E, Oosting AJ, et al. 2003. Evaluation of impermeable covers for bedding in patients with allergic rhinitis. N Engl J Med, 349:237–46. Toda M, Ono SJ. 2002. Genomics and proteomics of allergic disease. Immunology, 106:1–10. Utell MJ, Samet JM. 1993. Particulate air pollution and health; new evidence on an old problem. Am Rev Respir Dis, 147:1334–5. Allergic rhinitis van Strien RT, Engel R, Holst O, et al. 2004. Microbial exposure of rural school children, as assessed by levels of N-acetyl-muramic acid in mattress dust, and its association with respiratory health. J Allergy Clin Immunol, 113:860–7. Varney VA, Jacobson MR, Sudderick RM, et al. 1992. Immunohistology of the nasal mucosa following allergen-induced rhinitis. Identification of activated T lymphocytes, eosinophils, and neutrophils. Am Rev Respir Dis, 146:170–6. von Mutius E, Martinez FD, Fritsch C, et al. 1994a. Skin test reactivity and number of siblings. BMJ, 308:692–5. von Mutius E, Martinez FD, Fritzsch C, et al. 1994b. Prevalence of asthma and atopy in two areas of West and East Germany. Am J Respir Crit Care Med, 149:358–64. Wang DY, Chan A, Smith J. 2004. Management of allergic rhinitis: a common part of practice in primary care clinics. Allergy, 59:315–19. Wang DY, Goh DYT, Ho AKL, et al. 2003. The upper and lower airway responses to nasal challenge with house dust mite Blomia tropicalis. Allergy, 58:78–82. Wang D, Muhamad N, Smith D, et al. 2002. Rhinitis: do diagnostic criteria affect the prevalence and treatment. Allergy, 57:150–4. Warner JA, Jones CA, Williams TJ, et al. 1998. Maternal programming in asthma and allergy. Clin Exp Allergy, 28(Suppl 5):35–8. Wickens K, de Bruyne J, Calvo M, et al. 2004. The determinants of dust mite allergen and its relationship to the prevalence of symptoms of asthma in the Asia-Pacific region. Pediatr Allergy Immunol, 15: 55–61. Weidinger S, Klopp N, Wagenpfeil S, et al. 2004. Association of a STAT 6 haplotype with elevated serum IgE levels in a population based cohort of white adults. J Med Genet, 41:658–63. Wood RA, Chapman MD, Adkinson N Jr, et al. 1989. The effect of cat removal on allergen content in household-dust samples. J Allergy Clin Immunol, 83:730–4. Zhang L, Chew FT, Soh SY, et al. 1997. Prevalence and distribution of indoor allergens in Singapore. Clin Exp Allergy, 27:876–85. Therapeutics and Clinical Risk Management 2005:1(2) 123