Analisis SNP dan mRNA DTNBP1 (rs2619522 dan rs2619528): Tinjauan Kadar Disbindin, Snapin, Glutamat, dan Agregasi Platelet pada Skizofrenia = Analysis of DTNBP1 SNP and mRNA (rs2619522 and rs2619528): Its Effects on Dysbindin, Snapin, Glutamate Levels and Platelet Aggregation in Schizophrenia