Development of a specific IgY-based ELISA for prothymosin alpha, a bioactive polypeptide with diagnostic and therapeutic potential oleh Chrysoula-Evangelia Karachaliou, Ioannis V. Kostopoulos, Vyronia Vassilakopoulou, Persefoni Klimentzou, Maria Paravatou-Petsotas, Wolfgang Voelter, Hubert Kalbacher, Christos Zikos, Ourania Tsitsilonis, Evangelia Livaniou