ELEMENTAL ANALYSIS OF MEDICINAL LEECH ArticlePleteneva T.V., Mokrousov A.A., Maksimova T.V., Luzanova I.S., Tambovtseva M.A., Syroeshkin A.V.Khimiko-Farmatsevticheskii Zhurnal. Том 44. 2010. С. 46-48
