HEPATOPULMONARY SYNDROME IN CHILDREN: LITERATURE REVIEW AND CLINICAL OBSERVATION Article Ovsyannikov D.Y., Nikolaeva D.Y., Kantemirova M.G., Korovina O.A., Glazyrina A.A., Bykov D.F., Frolov P.A., Daniel-Abu M., Semyatov S.M., Koltunov I.E. Pediatriya - Zhurnal im G.N. Speranskogo. Vol. 96. 2017. P. 117-125