%0 Journal Article %T MODERN VIEW ON THE PROBLEM OF OSTEOPOROSIS IN ANKYLOSING SPONDYLITIS %A Raskina, T.A. %A Malyshenko, O.S. %A Pirigova, M.V. %A Letaeva, M.V. %A Averkieva, Y.V. %K ankylosing spondylitis, osteoporosis %J Clinical Medicine and Pharmacology %D 2020 %N 5 %P 9 %I LLC Information and publishing center Innovations and investments