@incollection{Vogel13, author = {Nora Schweitzer and Arndt Vogel}, title = {Epidemiology and Risk Factors}, booktitle = {Liver Tumors}, publisher = {IntechOpen}, address = {Rijeka}, year = {2013}, editor = {Helen Reeves and Derek M. Manas and Rajiv Lochan}, chapter = {1}, doi = {10.5772/55908}, url = {https://doi.org/10.5772/55908} }