Perbandingan ekspresi tissue inhibitor of metalloproteinase-2 (TIMP 2) pada ameloblastoma pleksiform dan folikuler secara imunohistokimia : (penelitian pada pasien ameloblastoma di Rumah Sakit Cipto Mangunkusumo periode Januari 2011-Agustus 2014) = Comparison of expression of tissue inhibitor of metalloproteinase-2 (TIMP 2) immunohistochemically in plexiform and follicular ameloblastoma (Research of ameloblastoma's patient in Rumah Sakit Cipto Mangunkusumo on January 2011-August 2014)