RT Journal Article SR Electronic T1 Childhood acute lymphoblastic leukaemia was not linked to residential exposure to power line magnetic fields JF Evidence Based Nursing JO Evid Based Nurs FD BMJ Publishing Group Ltd and RCN Publishing Company Ltd SP 55 OP 55 DO 10.1136/ebn.1.2.55 VO 1 IS 2 YR 1998 UL http://ebn.bmj.com/content/1/2/55.abstract AB