RT Journal Article SR Electronic T1 The epidemic of violence against healthcare workers JF Occupational and Environmental Medicine JO Occup Environ Med FD BMJ Publishing Group Ltd SP 649 OP 650 DO 10.1136/oem.2004.014548 VO 61 IS 8 A1 D M Gates YR 2004 UL http://oem.bmj.com/content/61/8/649.1.abstract AB