Merza, N., J. Lung, O. Bazzaz, F. Aljuboory, and M. Saadaldin. “Rare Case of Upside-down Stomach in Advanced Hiatal Hernia ”. The Southwest Respiratory and Critical Care Chronicles, Vol. 7, no. 31, Oct. 2019, pp. 52-55, doi:10.12746/swrccc.v7i31.581.