Comment on

• Worldwide variation in prevalence of symptoms of asthma, allergic rhinoconjunctivitis, and atopic eczema: ISAAC. The International Study of Asthma and Allergies in Childhood (ISAAC) Steering Committee.

  [No authors listed] [No authors listed] Lancet. 1998 Apr 25;351(9111):1225-32. Lancet. 1998. PMID: 9643741
• Risk of asthma in children with exposure to mite and cat allergens.

  Grad R. Grad R. Lancet. 2000 Oct 21;356(9239):1369-70. doi: 10.1016/S0140-6736(00)02834-8. Lancet. 2000. PMID: 11052573 No abstract available.