EE FILLED 50 LB BAGS ON 7/13/02. HE ASKED TO FILL BAGS AGAIN ON 7/18 BUT SAID LEFT SHOULDER HURTFROM 7/13. HE REFUSED MEDICAL TREATMENT. HE ASKED TO FILL BAGS IN FEB. 2003 BUT SAID LEFT SHOULD ER HURT WITH PAIN STILL FROM 7/13. REQUIRED HIM TO SEE MD ON 2/28/03. INJURY DETERMINED TO BE WORK RELATED ON 3/13/03. INJURY UNDER INVESTIGATION BY WORKER'S COMP. CARRIER.