OTLIChIYa IZMENENIY VNUTRENNEGO SFINKTERA ZADNEGO PROKhODA U PATsIENTOV S RAZNYMI KLINIChESKIMI PROYaVLENIYaMI ANAL'NOY AKhALAZII: ZAPORAMI, ANAL'NYMI TREShchINAMI, GEMORROEM - PDF (Russian)
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