Perri, Tamuno-owunari, Vincent Ezikornwor Weli, Bright Poronakie, and Tombari Bodo. 2021. “Distribution of Respiratory Tract Infectious Diseases in Relation to Particulate Matter (PM2.5) Concentration in Selected Urban Centres in Niger Delta Region of Nigeria”. Journal of Geographical Research 5 (1):1-11. https://doi.org/10.30564/jgr.v5i1.3710.