EFFECTS OF VARIOUS NITRIC OXIDE DONATING AGENTS ON THE CONTRACTILITY AND THE CYCLIC NUCLEOTIDE TURNOVER OF HUMAN SEMINAL VESICLES IN VITRO СтатьяHeuer O., Uckert S., Machtens S.A., Stief C.G., Tsikas D., Frolich J.C., Jonas U.Andrologia. Том 33. 2001. С. 171-183