Cita APA (7a ed.)

Duarte, Y. G., Castillo, M. E., & Pérez, C. D. (2021). Periodontal disease as an aggravating factor in patients with COVID-19. ECIMED.

Cita Chicago Style (17a ed.)

Duarte, Yaday Guerra, Mirkey Estrada Castillo, y Clara Doncel Pérez. Periodontal Disease as an Aggravating Factor in Patients with COVID-19. ECIMED, 2021.

Cita MLA (8a ed.)

Duarte, Yaday Guerra, et al. Periodontal Disease as an Aggravating Factor in Patients with COVID-19. ECIMED, 2021.