Kazan medical journalKazan medical journal0368-48142587-9359Eco-Vector9569810.17816/kazmj95698MiscellaneousTo the functional diagnosis of the heart. Palcso (Zeit. f. Keislauff. 1928, No. 15)RaiskyS. M.info@eco-vector.com151119282411124712473012202130122021Copyright © 1928, Eco-Vector1928<p>Having studied the breath-hold test proposed by Gnczu on 53 patients with heart, kidney and vascular diseases, the author found that establishing the duration of breath-hold is a simple and reliable method of determining the efficiency of the heart.</p>Kazan Medical archiveКазанский медицинский архив