Over-exertion in pulling or pushing objects
EE WAS ATTEMPTING TO OPEN DOZER DOOR, WHEN HE PULLED HARD ON THE DOOR HE HEARD SOMETHING POP IN UPPER BACK. NOTE: EE DID NOT GO TO DR UNTIL JAN 27. EE DID NOT COME TO TALK UNTIL 3/29/00. HE RE PORTED IT TO ME TODAY.