Development of a standardized scoring method for the Graphic Sequence Test suitable for use in psychiatric populations by Oral Timucin, Shoretstanitis George, Papastergiou Natalia, Rova Klairi, Kantartzis Sotiris, Sokolaki Stavroula, Magiria Stamatia, Siamouli Melina, Panagiotidis Panagiotis, Fountoulakis Konstantinos, Mavridis Theoharis, Iacovides Apostolos, Kaprinis George