Black, Christopher J., Paine, Peter A, Agrawal, Anurag, Aziz, Imran, Eugenicos, Maria P, Houghton, Lesley A., Hungin, Pali, Overshott, Ross, Vasant, Dipesh H, Rudd, Sheryl, Winning, Richard C, Corsetti, Maura, Ford, Alexander C., "British Society of Gastroenterology guidelines on the management of functional dyspepsia", Gut, 2022