Nomonde Ndyalvan, Mirabel K. Nanjoh, Monwabisi Faleni, Wezile W. Chitha, Sibusiso C. Nomatshila. "Prevalence of gastroesophageal reflux disease and its associated risk factors among the adult population of Mthatha, Eastern Cape, South Africa." PLoS ONE (2025). https://doi.org/10.1371/journal.pone.0337059