1. Institute of Physics, Astronomy and Informatics, Nicolaus Copernicus University in Torun,Faculty of Physics,Torun,Poland,87-100
2. Harry Perkins Institute of Medical Research, QEII Medical Centre,BRITElab,Nedlands,Western Australia,Australia,6009
3. University of Warsaw,Faculty of Biology,Department of Embryology,Warsaw,Poland,02-096