1. Hollingsworth, JW, Jablon S: Correlation between tests in Hiroshima subjects-an attempt to define “physiological age”. Yale J. Biol. Med., 33, 11, 1965.
2. Dean, W: Biological Aging Measurement, The Center for Biogerontology, Los Angeles, 1988.
3. Balin, K: Practical handbook of human biological age determination. CRC Press, Boca Raton, 1994.
4. Bulpitt, CJ, Shipley, MJ, Brought, ON, et al: The Assessment of biological age — a report from the Department of environmental study. Aging-clinical and experimental research. 6,3, 181–191, 1994
5. Doubal, S., Klemera P: Biophysical methods of biological age assessment. In: E. Kukurová. (ed.): Advances in Medical Physics. Bratislava, Malé centrum, 115–117, 1997.