RT Journal Article SR Electronic T1 Chronic stressors increased susceptibility to colds JF Evidence Based Nursing JO Evid Based Nurs FD BMJ Publishing Group Ltd and RCN Publishing Company Ltd SP 54 OP 54 DO 10.1136/ebn.2.2.54 VO 2 IS 2 YR 1999 UL http://ebn.bmj.com/content/2/2/54.abstract AB