RT Journal Article SR Electronic T1 A cautionary note on the use of the correlation coefficient. JF British Journal of Industrial Medicine JO Br J Ind Med FD BMJ Publishing Group Ltd SP 526 OP 527 DO 10.1136/oem.49.7.526-a VO 49 IS 7 A1 Lee, J YR 1992 UL http://oem.bmj.com/content/49/7/526.2.abstract AB