MR Defecating Proctography with Emphasis on Posterior Compartment Disorders. - Revels JW; Mansoori B; Fadl S; Wang SS; Olson MC; Moran SK; Terrazas MF; Fletcher JG; Perry WRG; Chernyak V; Mileto A (Radiographics : a review publication of the Radiological Society of North America, Inc, 2023)