2. MATERIALS AND METHODS
2.1. Study population
The study population consisted of 18 adults (12 females and 6 males; age
range 23-50 years; mean 34.8 ± 8.2 years). Three non-allergic controls
and 15 patients, who suffered from at least one respiratory allergy,
were included. Sampling was performed in August. All subjects were asked
to stop with all anti-allergic medication for at least a week before
sampling. Written informed consent was obtained from all individuals,
the study was approved by the medical ethics committee UZA-UA (EC UZA
18/11/154).