Updates are available Correction dated 2020-09-26

Article History

Received: 1 May 2020

Accepted: 7 September 2020

First Online: 18 September 2020

Change Date: 26 September 2020

Change Type: Correction

Change Details: In the published online paper, the data “<Emphasis Type="Italic">p</Emphasis> = 0.144” was not deleted from the line “Median and mean number of prior treatments (range)” in Table 4.

Compliance with ethical standards

:

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

: This retrospective chart review study involving human participants was in accordance with the ethical standards of the institutional and national research committee and with the 1964 Helsinki Declaration and its later amendments or comparable ethical standards. The Human Investigation Committee (IRB) of Tokyo Women’s Medical University approved this study. This study was conducted in accordance with the Declaration of Helsinki and was approved by the Tokyo Women’s Medical University Institutional Ethics Committee (no. 3318, no. 5522).

: Informed consent was obtained either directly or indirectly using an opt-out approach from the patient included in the study.

: Informed consent was obtained either directly or indirectly using an opt-out approach from the patient included in the study.