For citations:

Voronina N.M., Кузьмина Н.Н. Clinical and ultrasound diagnosis of valvular heart disease of rheumatic and not rheumatic TOC \o "1-5" \h \z genesis in children. Rheumatology Science and Practice. 2004;42(3):55-60. (In Russ.) https://doi.org/10.14412/1995-4484-2004-1482