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. Author manuscript; available in PMC: 2021 Aug 1.
Published in final edited form as: Contemp Clin Trials. 2020 May 30;95:106037. doi: 10.1016/j.cct.2020.106037

Table 2:

Additional Data Requirements for Credit Linkage

Required/Collected Routinely by SWOG Required specifically for credit linkage
Name No (Initials only, Name optional) Yes
SSN No (Requested but optional) Yes
Full Street Address No Yes
Zip Code Yes Yes
Birth Date Yes Yes