Acknowledgements
ROTH
We would like to thank all staff members of the pediatric surgery practice, the department of anesthesia, the surgical team and the pediatric clinic of Traunstein Hospital for their help and support during the performance of this study. Special thanks go to the anesthesiologists Dr. Winfried Roth and Ulf van Schwartzenberg and the pediatric surgeons Andreas Schmeller and Christian Blume for their patience and consideration during the measurements. Furthermore, we thank Mr. Eckhard Teschner of Drägerwerk AG & Co. KGaA (Lübeck, Germany) for support with technical and content-related questions, as well as Dr. Plückhahn and Drägerwerk AG & Co. KGaA (Lübeck, Germany), for the possibility of additional data analysis.