Systemic lypus erythematosus: diagnostic, treatment, prevention / V. V. Chopyak, Ja. F. Tolstyak, K. E. Ishejkin, O. V. Synenkyy, I. G. Hajduchok ; – Lviv: ZUKC, 2019. – 270 s - V. Kovalenko (Proceedings of the Shevchenko Scientific Society. Medical sciences, 2020)