- Vipera lebetina venom nerve growth factorSiigur, Ene; Paalme, Viiu; Trummal, Katrin; Tõnismägi, Külli; Järvekülg, Lilian; Subbi, Juhan; Siigur, Jüri16th European Section Meeting of the International Society on Toxinology : Leuven, Belgium, 7-10 September 2008 : book of abstracts2008 / p. 55