Oleg Yur'yevich At'kov is a Russian cardiologist and former Soviet cosmonaut. With a doctorate from the Russian Academy of Medical Science, Atkov was chosen to be the health specialist on board Soyuz T-10 and Soyuz T-11. After Atkov's rather long time in space, he returned to work at the Myasnikov Institute of Clinical Cardiology to continue his research on the adaptation of weightlessness and cardiology. With his published research and time in space, Atkov holds two of the USSR's highest honors; the Order of Lenin and the title of Hero of the Soviet Union. Atkov is a professor of medicine at the Russian National Research Medical University and currently serves as the vice president of Russian Railways.