Text and Data Mining valid from 2018-04-20
Received: 31 August 2017
Accepted: 12 April 2018
First Online: 20 April 2018
Ethics approval and consent to participate
: This study was approved by the Bioethics Center of Lithuanian University of Health Sciences. Individual written informed consent was unnecessary according to the Law of Lithuanian Bioethics Committee 2011 [CitationRef removed]. This study was retrospective and based on database extracted records and medical documentation. Analyzed data had been de-identified. Administrative permissions of the Kaunas Oncology Hospital and the Oncology Institute of Lithuanian University of Health Sciences was required and obtained in order to review patient records and use the data mentioned in the Methods.
: The authors declare that they have no competing interests.
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