Welcome, could you treat my response as the answer? If possible, please read the materials in sdtm ig before doing sdtm datasets. https://www.cdisc.org/standards/foundational/sdtmig
please accept it as solution if I have solved your question.
I accept this as the solution of my problem.
I am sorry but in my screen there is no tab saying accept as a solution. So I am typing a message for that.
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