For citations:
Burlutskaya A.V., Tril V.E., Saveleva N.V., Ustuzhanina D.V., Pisotskaya J.V., Bogacheva S.M. Polyarteritis Nodosa: Clinical Cases in Boys 12 and 9 Years Old. Kuban Scientific Medical Bulletin. 2023;30(2):89-101. (In Russ.) https://doi.org/10.25207/1608-6228-2023-30-2-89-101