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Vorob'ev AA, Kiselevskiĭ MV, Ter-Ovanesov MD, Titov KS, Khalturina EO.Vorob'ev AA, et al. Among authors: khalturina eo.Vestn Ross Akad Med Nauk. 2003;(6):16-9.Vestn Ross Akad Med Nauk. 2003.PMID: 12861710Review.Russian.