[1] Univ Navarra Clin, Allergol & Clin Immunol, Pamplona, Spain
[2] Univ Complutense Madrid, Biochem & Mollecular Biol, Madrid, Spain
[3] Hosp Ramon & Cajal, Allergol, E-28034 Madrid, Spain
[4] Hosp Ramon & Cajal, IRYCIS, Biochem Res, E-28034 Madrid, Spain
[5] Hosp Ciudad Real, Allergol, Ciudad Real, Spain
[6] Hosp Virgen del Puerto, Allergol, Plasencia, Spain