Lago, Josilene Nascimento do, et al. “Meta-Analysis: Hydroxychloroquine Therapy Approach With or Without Azithromycin Against Covid-19”. International Journal for Innovation Education and Research, vol. 8, no. 8, Aug. 2020, pp. 73-87, https://doi.org/10.31686/ijier.vol8.iss8.2493.