16 data onelevel
(keep=pt rename
=(pt
=patient
));
17 data two.level
(keep=pt rename
=(pt
=patient
));
26 else if something
then something
;
44 if something
then something
;
45 if something
then something do
;
91 proc any
data=onelevel out
=two.level
;
92 proc any
data=onelevel
(where
=(something
)) out
=two.level
(where
=(something
));