Corrections
Graded exercise in chronic fatigue syndrome
BMJ 1997; 315 doi: https://doi.org/10.1136/bmj.315.7116.1165b (Published 01 November 1997) Cite this as: BMJ 1997;315:1165
An editorial error occurred in the table in the fifth letter in this cluster, by Peter D White and Kathy Y Fulcher (11 October, p 948). The bottom row of the table shows the median (interquartile range) duration of illness, not the mean duration as stated.