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3. D. G. Pivovarov, ?Functional state of the solitary kidney after nephrectomy,? Author's Abstract of Candidate's Dissertation, Blagoveshchensk (1969).
4. A. Ya. Pytel' and M. A. Grishin, Diseases of the Single Kidney [in Russian], Moscow (1973).
5. N. A. Ratner, G. L. Spivak, G. A. Glezer, et al., Klin. Med., No. 2, 84 (1972).