Chukwuocha, Uchechukwu Madukaku, Joshua Chisom Ogboeze, Ayoola Oluwaseun Bosede, Ugonma Winnie Dozie, Uzochukwu Godswill Ekeleme, Victoria Ngozi Akam, and Rita Ogechi Chukwu. 2022. “Use of facemask during the COVID-19 pandemic in Southeastern Nigeria: an observational study: 10.55131/jphd/2022/200209”. Journal of Public Health and Development 20 (2). Bangkok, Thailand:110-25. https://doi.org/10.55131/jphd/2022/200209.