CDISC SDTM Implementation Guide Version 3.1.2 Amendment 1

**Semantic type:** Conceptual Entity

**Definition:** Amendment 1 of the 3.1.2 version of the CDISC Study Data Tabulation Model (SDTM) implementation guide.

**Synonyms:** - SDTMIG Version 3.1.2 Amendment 1 - Version 3.1.2 Amendment 1