Bussen, Dieter and Seyfried, Steffen. "16. Kinderproktologie".
Band 1 Manual der Koloproktologie, 1, edited by Alexander Herold and Thomas Schiedeck, Berlin, Boston: De Gruyter, 2019, pp. 239-248.
https://doi.org/10.1515/9783110614442-016Bussen, D. & Seyfried, S. (2019). 16. Kinderproktologie. In A. Herold & T. Schiedeck (Ed.),
Band 1 Manual der Koloproktologie, 1 (pp. 239-248). Berlin, Boston: De Gruyter.
https://doi.org/10.1515/9783110614442-016Bussen, D. and Seyfried, S. 2019. 16. Kinderproktologie. In: Herold, A. and Schiedeck, T. ed.
Band 1 Manual der Koloproktologie, 1. Berlin, Boston: De Gruyter, pp. 239-248.
https://doi.org/10.1515/9783110614442-016Bussen, Dieter and Seyfried, Steffen. "16. Kinderproktologie" In
Band 1 Manual der Koloproktologie, 1 edited by Alexander Herold and Thomas Schiedeck, 239-248. Berlin, Boston: De Gruyter, 2019.
https://doi.org/10.1515/9783110614442-016
