#+name: bar
#+BEGIN_SRC emacs-lisp 
:baz
#+END_SRC

#+call: bar()

#+RESULTS:
: :baz

#+call: bar()

#+RESULTS:
: :baz

#+name: foo
#+call: bar()

#+RESULTS: foo
: :baz

#+name: foo2
#+call: bar()

#+RESULTS: foo2
: :baz

#+name: foo
#+call: bar()