Nuernberg, D, Saftoiu, A, Barreiros, A P, Burmester, E, Ivan, E T, Clevert, D-A, Dietrich, C F, Gilja, O H, Lorentzen, T, Maconi, G, Mihmanli, I, Nolsoe, C P, Pfeffer, F, Rafaelsen, S R, Sparchez, Z, Vilmann, P & Waage, J E R 2019, ' EFSUMB Recommendations for Gastrointestinal Ultrasound Part 3 : Endorectal, Endoanal and Perineal Ultrasound ', Ultrasound International Open, vol. 5, no. 1, pp. E34-E51 . https://doi.org/10.1055/a-0825-6708 Ultrasound International Open Nuernberg, D, Saftoiu, A, Barreiros, A P, Burmester, E, Ivan, E T, Clevert, D A, Dietrich, C F, Gilja, O H, Lorentzen, T, Maconi, G, Mihmanli, I, Nolsoe, C P, Pfeffer, F, Rafaelsen, S R, Sparchez, Z, Vilmann, P & Waage, J E R 2019, ' EFSUMB Recommendations for Gastrointestinal Ultrasound Part 3 : Endorectal, Endoanal and Perineal Ultrasound ', Ultrasound International Open, vol. 5, no. 1, pp. E34-E51 . https://doi.org/10.1055/a-0825-6708 Ultrasound International Open, Vol 05, Iss 01, Pp E34-E51 (2019)