1. Department Biomedical Engineering, Groningen University, University Medical Center Groningen, Antonius Deusinglaan 1, 9713AW Groningen, The Netherlands
2. Institute of Metallurgy and Materials Science, Polish Academy of Sciences, Reymonta 25, 30-059 Krakow, Poland
3. Department of Dental Biomedical Sciences, Faculty of Dentistry, Universitas Gadjah Mada, Jalan Denta 1 Sekip Utara, 55281 Yogyakarta, Indonesia