%0 Conference Proceedings %T Preparation of a natural three dimentional elastic scaffold, from amphibians (Pelophylax ridibundus %A Mohammadzadeh, Nasibeh %A Moghaddam Matin, Maryam %A Mahdavi SHahri, Nasser %A Fereidoni, Masoud %J 18th National and 6th International Congress of Biology in Iran %D 2014