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Article History

Received: 30 January 2020

Accepted: 9 May 2020

First Online: 26 April 2021

Declarations

:

: The authors declare that they have no conflict of interest.

: This study was a retrospective study; data of patients was collected from the hospital database, including demographics as well as patient and disease related characteristics (laboratory data, treatment, and outcome). All data analyzed were a part of routine diagnosis and treatment. Diagnosis and treatment of patients were according to national guidelines and practices. Complete anonymity of patients has been maintained. The paper does not involve primary research. For this type of study formal consent is not required.

: All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.

: For this type of study formal consent is not required.