[1] Univ Groningen, Univ Med Ctr Groningen, Groningen Res Inst Asthma & COPD, Dept Pathol & Med Biol, Groningen, Netherlands
[2] Univ Groningen, Univ Med Ctr Groningen, Groningen Res Inst Asthma & COPD, Dept Pulm Dis, Groningen, Netherlands
[3] Univ Groningen, Groningen Res Inst Pharm, Dept Analyt Biochem, Groningen, Netherlands
[4] Univ Groningen, Univ Med Ctr Groningen, Dept Pediat, Groningen, Netherlands
[5] Univ Med Ctr Groningen, European Res Inst Biol Ageing, Groningen, Netherlands