Analisis Hubungan Derajat Pleomorfisme Nuklear, Jumlah Mitosis, dan Tingkat Infiltrasi Limfoplasmasitik terhadap Derajat Diferensiasi Karsinoma Sel Skuamosa Rongga Mulut = Analisis Hubungan Derajat Pleomorfisme Nuklear, Jumlah Mitosis, dan Tingkat Infiltrasi Limfoplasmasitik terhadap Derajat Diferensiasi Karsinoma Sel Skuamosa Rongga Mulut = Analysis of the Relationship between the Degree of Nuclear Pleomorphism, the Number of Mitoses, and the Level of Lymphoplasmacytic Infiltration with the Degree of Differentiation of Oral Cavity Squamous Cell Carcinoma.