Affiliation: | (1) Department of Cell and Molecular Biology, Technical University of Braunschweig, Spielmannstrasse 7, D-38106 Braunschweig, Germany E-mail: h.arnold@tu-bs.de Tel.: +49-531-3915735, Fax: +49-531-3918178, DE;(2) Department of Obstetrics and Gynecology, Asahikawa Medical College, Nishikagura 4-5-3-11, Asahikawa, 078-8510, Japan, JP |