1. Radiobiology Unit, Interdisciplinary Biosciences, Institute for Environment, Health and Safety; Belgian Nuclear Research Centre SCK•CEN, Boeretang 200; Mol 2400 Belgium
2. Laboratory of Neural Circuit Development and Regeneration, Animal Physiology and Neurobiology section, Department of Biology, Faculty of Science; KU Leuven, Naamsestraat 61 bus 2464; Leuven 3000 Belgium