WHILE PREPARING TO INSPECT & CLEAN THE CEMENT PLANT DUST COLLECTOR, EE STRUCK HIS HEAD (WEARING HARD HAT) WHILE ENTERING THE DOORWAY OF THE DUST COLLECTOR & JAMMED HIS NECK. EE DID NO SEE A DR UNTIL 2/23/04 & ON 2/26/04 HE RECEIVED OSTEOPATHIC MANIPULATIVE TREATMENT.