Number of Sleep Medicine Centers(link to their titles and locations):：About 50 Sleep Medicine Centers in Russia，including more than 20 centers in Moscow，the most important of them led by：A.L.Kalinkin http://www.sleeplab.ru; M.G.Poluektov http://www.sleepmed.ru;R.V.Buzunov www.sleepnet.ru; G.V.Kovrov http://www.mma.ru/rescenter/resdep/patvns;M.V.Agaltzov http://www.gnicpm.ru.

    Number of Sleep Research Centers(link to their titles and locations):7 Sleep Research Centers ......