Authors
Armands Sīviņš
Latvia Oncology Center, Riga East University Hospital, Riga, Latvia
Department of surgery, University of Latvia, Riga, Latvia
© 2020 Ilva Spiridonova, Armands Sīviņš, published by Riga Stradins University
This work is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 License.