by Varelas, Fotios K., Papanicolaou, Alexis N., Vavatsi-Christaki, Norma, Makedos, Georgios A., Vlassis, Georgios D.
Published in Obstetrics and gynecology (New York. 1953) (01.09.2007)

by Panidis, D K, Rousso, D H, Matalliotakis, I M, Kourtis, A I, Vlassis, G D, Koumantakis, E E
Published in International journal of fertility & women's medicine (01.11.1999)