F. Yağcı, A. Erbağcı, N. Sözduyar, and H. Afşar, “The Effect of Varicocele Grade on Sperm Quality: [VARİKOSEL DERECESİNİN SPERM KALİTESiNE ETKİSİ]”, Eur J Ther, vol. 4, no. 1, pp. 86–89, Jan. 1993.