1
3
![](https://secure.gravatar.com/avatar/f174b9816ccce31bf5cdb49501b15358.jpg?s=120&d=mm&r=g)
Re: [EpiData-list] Problem defining the key variable for a relational
by EpiData development and support 25 May '17
by EpiData development and support 25 May '17
25 May '17
1
0
![](https://secure.gravatar.com/avatar/f174b9816ccce31bf5cdb49501b15358.jpg?s=120&d=mm&r=g)
Problem defining the key variable for a relational database
by EpiData development and support 24 May '17
by EpiData development and support 24 May '17
24 May '17
1
1