Sultan Kozhemov, Inna Pustokhina, Svetlana Danshina, A. T. A. S. E. E. S. M. (2019). Experience in the use of collagen phytoplates in the treatment of gingivitis. Opción, 35, 582-598. Recuperado a partir de https://mail.produccioncientificaluz.org/index.php/opcion/article/view/24717