Analisis Hubungan Profil Human Leukocyte Antigen Dengan Ulser Mulut Systemic Lupus Erythematosus (Dengan memperhatikan faktor usia, jenis kelamin, ras dan stres) = Analysis of the association of Human Leukocyte Antigen profile with oral ulcers Systemic Lupus Erythematosus ( included an evaluation association of age, gender, race and stress )