FIK, V. B.; CHELPANOVA, I. V.; Paltоv E. V. Morphometric studies of periodontal structures during opioid exposure at the end of six and eight weeks. Морфологія / Morphologia / Morfologìâ, [S. l.], v. 13, n. 3, p. 133–137, 2019. DOI: 10.26641/1997-9665.2019.3.133-137. Disponível em: https://morphology.dma.edu.ua/article/view/185321. Acesso em: 22 apr. 2026.