Use this field if any of the data sets selected after the first uses a variable with another name for the ID Variable .The names for all of the ID variables for the 2 nd through the last input data sets must be specified here.
Type the names of the ID variables from the 2 nd through the last input data sets in the text box.
Separate the variables with a space .For example, to specify the ID variable names for an analysis of three studies where the ID variables in the first, second, and third input data sets are ID , SNP , and Marker , respectively, complete the following steps: