RT Journal Article SR Electronic T1 Vaccination of health care workers working in geriatric long term care hospitals reduced patient mortality JF Evidence Based Nursing JO Evid Based Nurs FD BMJ Publishing Group Ltd and RCN Publishing Company Ltd SP 18 OP 18 DO 10.1136/ebn.1.1.18 VO 1 IS 1 YR 1998 UL http://ebn.bmj.com/content/1/1/18.abstract AB