> On Sep 7, 2017, at 3:39 PM, Bhagwat, Shrikant <shrbhagw at med.umich.edu> wrote: > > What are allowed values in output_pair Read the documentation you were told to read. The answer is in there. If you don't have the time to read the documentation, we don't have the time to cut & paste it into an email on the list. Alan DeKok.