1. Dermatologieaarschot.be; Aarschot Belgium
2. Imelda ziekenhuis, Department Dermatology; Bonheiden Belgium
3. Research Group Natural Products and Food-Research and Analysis (NatuRA), Department of Pharmaceutical Sciences; University of Antwerp (UA); Antwerp Belgium
4. Department of Dermatology; University Hospital Antwerp (UZA) and University of Antwerp (UA); Antwerp Belgium