1 Dept. of Life Sciences, Univ. of Trieste, Via Licio Giorgieri 5, 34127 Trieste, Italy. Electronic address: mgerdol@units.it.
2 Dept. of Pharmacy, Faculty of Pharmaceutical Science, Nagasaki International Univ., 2825-7 Huis Ten Bosch, Sasebo, Nagasaki 859-3298, Japan.
3 Dept. of Life Sciences, Univ. of Trieste, Via Licio Giorgieri 5, 34127 Trieste, Italy.
4 Dept. of Life and Environmental System Science, Graduate School of NanoBio Sciences, Yokohama City Univ., 22-2 Seto, Kanazawa-ku, Yokohama 236-0027, Japan.