Received: 12 January 2021
Accepted: 30 March 2021
First Online: 1 May 2021
: All methods were carried out in accordance with relevant guidelines and regulations.IRB approval and informed consent were not applicable as this study used anonymized sociodemographic and clinical information of confirmed cancer cases among cancer patients collected by the Commonwealth of Massachusetts and the authors accessed this restricted cancer registry data and received for approval of the publication of the data under a Data Use Agreement with the Massachusetts Department of Public Health.
: Not applicable.
: The authors declare that they have no competing interests.