SDD, smallest detectable difference

Hand bone loss in early undifferentiated arthritis: evaluating bone mineral density loss before the development of rheumatoid arthritis
G Haugeberg, M J Green, M A Quinn, H Marzo-Ortega, S Proudman, Z Karim, R J Wakefield, P G Conaghan, S Stewart, P Emery

Annals of the Rheumatic Diseases Jun 2006, 65 (6) 736-740; DOI: 10.1136/ard.2005.043869
Assessment of acute spinal inflammation in patients with ankylosing spondylitis by magnetic resonance imaging: a comparison between contrast enhanced T₁ and short tau inversion recovery (STIR) sequences
X Baraliakos, K-G A Hermann, R Landewé, J Listing, W Golder, J Brandt, M Rudwaleit, M Bollow, J Sieper, D van der Heijde, J Braun

Annals of the Rheumatic Diseases Aug 2005, 64 (8) 1141-1144; DOI: 10.1136/ard.2004.031609
How do the EQ-5D, SF-6D and the well-being rating scale compare in patients with ankylosing spondylitis?
Annelies Boonen, Désirée van der Heijde, Robert Landewé, Astrid van Tubergen, Herman Mielants, Maxime Dougados, Sjef van der Linden

Annals of the Rheumatic Diseases Jun 2007, 66 (6) 771-777; DOI: 10.1136/ard.2006.060384
Reproducibility of bone mineral density measurement in daily practice
M C Lodder, W F Lems, H J Ader, A E Marthinsen, S C C M van Coeverden, P Lips, J C Netelenbos, B A C Dijkmans, J C Roos

Annals of the Rheumatic Diseases Mar 2004, 63 (3) 285-289; DOI: 10.1136/ard.2002.005678

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