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Siska Ella Natassa, Rika Mayasari Alamsyah, Raja Arief Rahman Siregar. FAKTOR RISIKO KEPARAHAN GINGIVAL LEAD LINE PADA PETUGAS SPBU DI MEDAN : RISK FACTORS OF GINGIVAL LEAD LINE SEVERITY OF GAS STATION EMPLOYEE IN MEDAN. Dentika Dental J. [Internet]. 2013Jul.11 [cited 2024Jul.8];17(3):251-4. Available from: https://talenta.usu.ac.id/dentika/article/view/1723