(原始内容存档于20 June 2020). Ex-head of Chuvashia Ignatiev hospitalized with bilateralpneumonia. Kommersant. 27 May 2020 [20 June 2020]. (原始内容存档于20 June 2020).
Silane MF, Laragh JH. Recurrent pulmonary oedema in hypertension due to bilateral renal artery stenosis: treatment by angioplasty or surgical revascularisation