Clean up @Clinical slot so data are in columns with correct column names.
Revert "Clean up @Clinical slot so data are in columns with correct column names." because of line endings problem.

This reverts commit 74e454a8d1a2bb3a8dd21c072f218212bf1d47bb.
Fix up @Clinical data.frame.
Merge pull request #4 from lwaldron/master

clean up @Clinical slot data.frame (variables in columns with column names).