by Bisen and Deshpande.
by Eren et al.
by Akgül.
by Hesapcioglu and Yesilova.
by Gündogmus et al.
Kilicel et al.
Kursuncu and Bastemur.
by Pehlivan et al.
by Ghiasee and Sagsan
by Akcay et al.
Nesim Kuğu, Gamze Akyüz, Erdal Erşan, Orhan Doğan
(Alpha Psychiatry 2000; 1: 19-25)