For citations:
Goncharov N.P., Koryakin M.V., Katsiya G.V., Kolesnikova G.S., Dobracheva A.D., Todua T.N. Blood levels of leptin, steroid hormones Cl9, C21, and insulin in males with impaired reproductive function. Problems of Endocrinology. 2003;49(5):17-20. (In Russ.) https://doi.org/10.14341/probl11719

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