Vasotab, a vasoactive peptide from horse fly Hybomitra bimaculata (Diptera, Tabanidae) salivary glands. by Takác, P, Nunn, M, Mészáros, J, Pechánová, O, Vrbjar, N, Vlasáková, P, Kozánek, M, Kazimírová, M, Hart, G, Nuttall, P, Labuda, M