An old study but, as shown in this thread, https://s4me.info/threads/top-10-sc...f-citations-tweet-by-dr-mark-gutheridge.7461/, one of the most cited ME/CFS papers in the past 10 years, so thought it might be useful to have here. Open access at https://www.ncbi.nlm.nih.gov/pmc/articles/PMC2680051/
For those interested the late Norman Booth, one of the authors, commented on the paper here https://forums.phoenixrising.me/ind...claren-howard-papers.47488/page-4#post-785000