• 1
    Van Cauwenberge P, Watelet JB, Van Zele T, Bousquet J, Burney P, Zuberbier T, on behalf of the GA2LEN partners. Spreading excellence in allergy and asthma: the GA2LEN (Global Allergy and Asthma European Network) project. Allergy 2005;60:858864.
  • 2
    *GA2LEN – Global Allergy and Asthma European Network 2005. Available at:, accessed on 25 March 2006.
  • 3
    Keil T, Kulig M, Simpson A, Custovic A, Wickman M, Kull I et al. for the working group of GA2LEN-WP 1.5 ‘Birth Cohorts’. European birth cohort studies on asthma and atopic diseases: I. Comparison of study designs – a GA2LEN initiative. Allergy 2006;61:221228.
  • 4
    Leimgruber A, Peitrequin R, Mosimann B, Claeys M, Seppey M, Jaccard Y et al. The pharmacia CAP system: a new assay for specific IgE. J Allergy Clin Immunol 1989;83:176.
  • 5
    Bousquet J, Chanez P, Chanal I, Michel FB. Comparison between RAST and Pharmacia CAP system: a new automated specific IgE assay. J Allergy Clin Immunol 1990;85:10391043.
  • 6
    Ravens-Sieberer U, Bullinger M. KINDL – Revised Children Quality of Life Questionnaire, 1998. Available at:, accessed on 25 March 2006.
  • 7
    Ahlstedt S. Understanding the usefulness of specific IgE tests in allergy. Clin Exp Allergy 2002;32:1116.
  • 8
    Yman L. Standardisation of in vitro methods. Allergy 2001;56:7074.
  • 9
    Yunginger JW, Ahlstedt S, Eggleston PA, Homburger HA, Nelson HS, Ownby DR et al. Quantitative IgE antibody assays in allergic diseases. J Allergy Clin Immunol 2000;105(6 Pt 1):10771084.
  • 10
    Sanz ML, Prieto I, Garcia BE, Oehling A. Diagnostic reliability considerations of specific IgE determination. J Investig Allergol Clin Immunol 1996;6:152161.
  • 11
    Boccagni P, Favari F, Zanoni G, Pezzini A, Tridente G. Comparison of four in vitro assays for specific IgE detection. Int J Clin Lab Res 1994;24:102105.
  • 12
    Heinzerling L, Frew AJ, Bindslev-Jensen C, Bonini S, Bousquet J, Bresciani M et al. Standard skin prick testing and sensitization to inhalant allergens across Europe – a survey from the GAL2EN network. Allergy 2005;60:12871300.
  • 13
    EAACI. Skin tests used in type I allergy testing position paper. Sub-Committee on Skin Tests of the European Academy of Allergology and Clinical Immunology. Allergy 1989;44(Suppl. 10):159.
  • 14
    Dreborg S. The skin prick test in the diagnosis of atopic allergy. J Am Acad Dermatol 1989;21:820821.
  • 15
    Rhodius R, Wickens K, Cheng S, Crane J. A comparison of two skin test methodologies and allergens from two different manufacturers. Ann Allergy Asthma Immunol 2002;88:374379.
  • 16
    Aurora P, Stocks J, Oliver C, Saunders C, Castle R, Chaziparasidis G et al. Quality control for spirometry in preschool children with and without lung disease. Am J Respir Crit Care Med 2004;169:11521159.
  • 17
    Arets HG, Brackel HJ, Van Der Ent CK. Forced expiratory manoeuvres in children: do they meet ATS and ERS criteria for spirometry? Eur Respir J 2001;18:655660.
  • 18
    American Thoracic Society (ATS). Standardization of Spirometry. 1994 Update. Am J Resp Crit Care Med 1995;152:11071136.
  • 19
    Quanjer P, Tammeling GJ, Colls JE, Pedersen O, Peslin R, Yernault J. Lung volumes and forced ventilation flows. Report of a Working Party. Standardisation of Lung Function Tests. European Community for Steel and Coal. Official Statement of the ERS. Eur Respir J 1993;16(Suppl.):5s40s.
  • 20
    Wickens K, Lane J, Siebers R, Ingham T, Crane J. Comparison of two dust collection methods for reservoir indoor allergens and endotoxin on carpets and mattresses. Indoor Air 2004;14:217222.
  • 21
    Hamilton RG. Environmental allergen analyses. Methods 1997;13:5360.