1. Glantz, S., Primer of Biostatistics, McGraw-Hill, 2005, 6th edition.
2. Demina, N.L., Tsirkin, V.I., Tarlovskaya, E.I., et al., Ross. Kardiol. Zh., 2008, no. 1(69), pp. 65–70.
3. Kukes, V.G., Sychev, D.A., and Andreev, D.A., Russ. Med. Zh., 2005, vol. 13, no. 14, pp. 932–938.
4. Nozdrachev, A.D., Tumanova, T.V., Dvoryanskii, S.A, et al., Dokl. Biol. Sci., 1998, vol. 363, no. 1, pp. 510–513 [Dokl. Akad. Nauk, 1998, vol. 363, no. 1, pp. 133–136].
5. Penkina, Yu.A., Nozdrachev, A.D., and Tsirkin, V.I., Vestn. S. Peterb. Univ. Ser. 3 (Biol.), 2008, no. 1, pp. 55–68.