Alexander M. Vaiserman,1,* Anatoly V. Pisaruck,1 Albert N. Timchenko,1 Vladimir P. Voitenko,1 Natalya M. Koshel1 & Pavel E. Grigoriev2
1Institute of Gerontology, Kiev, Ukraine, 2Tavrida Humanitarian Ecological Institute, Simferopol, Ukraine; *Author for correspondence (e-mail: vaiserman@geront.kiev.ua; fax:+38 (044) 432-9956)