Conversation so far:
how did Shaquille O'Neal hurt Shaquille O'Neal's toe?
He was sidelined with hallux rigidus, a degenerative arthritis in his toe.
did he lose his toe in the surgery?
O'Neal debated whether to have a more invasive surgery that would have kept him out an additional three months, but he opted against the more involved procedure.
What year was his toe surgery?
O'Neal missed the first 12 games of the 2002-2003 season recovering from toe surgery.
How long did the surgery last?
CANNOTANSWER.
what rehab did he have after the survey?
O'Neal missed the first 12 games of the 2002-2003 season recovering from toe surgery.
How much longer did he play after returning after 2003 season?
CANNOTANSWER.

Question: when did he depart from NBA?
Self-contained rewrite: When did Shaquille O'Neal depart from NBA?