Evaluation of Folic Acid level in Serum of Smokers and Non Smokers Patients with Periodontal Disease: A Case-Control Study. Mustansiria Dental Journal, [S. l.], v. 20, n. 2, p. 233–243, 2024. DOI: 10.32828/mdj.v20i2.1175. Disponível em: https://mdj.uomustansiriyah.edu.iq/index.php/mdj/article/view/1175. Acesso em: 15 may. 2025.