Hilda Fitria LuBis and Aida Violiny, “PERBEDAAN NILAI SKELETAL DALAM ARAH VERTIKAL ANTARA POLA PERNAFASAN NORMAL DAN PERNAFASAN MELALUI MULUT PADA PASIEN DI KLINIK ORTODONTI RSGMP FKG USU TAHUN 2009-2013: THE DIFFERENCES OF SKELETAL VERTICAL MEASUREMENTS BETWEEN NORMAL RESPIRATORY AND MOUTH BREATHING PATTERNS IN PATIENTS AT ORTHODONTICS CLINIC RSGMP FKG USU IN 2009-2013)”, Dentika Dental J., vol. 18, no. 3, pp. 232–235, Jul. 2015.