1. Revenio Research Ltd. Vantaa Finland
2. Department of Pulmonology and Allergology for Preschool and Schoolchildren Srebrnjak Children’s Hospital Zagreb Croatia
3. Catholic University of Croatia Zagreb Croatia
4. Medical Faculty Osijek JJ Strossmayer University Osijek Croatia
5. Department of Pulmonology and Allergology for Infants and Young Children Srebrnjak Children’s Hospital Zagreb Croatia
6. Research Department Srebrnjak Children’s Hospital Zagreb Croatia