Concepedia

Progression of osteoporosis in patients with COPD: A 3-year follow up study

Lidwien Graat‐Verboom, Frank W.J.M. Smeenk, Ben E.E.M. van den Borne, Martijn A. Spruit, Frits H. Jansen, Joris W.T. van Enschot, Emiel F.�M. Wouters

Respiratory Medicine · 2012 · 66 citations · 39 references

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39

ATS Statement: Guidelines for the Six-Minute Walk Test

American Journal of Respiratory and Critical Care Medicine · 2002 · 10.8K citations

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Validation of a combined comorbidity index

Mary E. Charlson, Ted P. Szatrowski, Janey C. Peterson et al. · Journal of Clinical Epidemiology · 1994 · 6.6K citations

, , +12

Vertebral fracture assessment using a semiquantitative technique

Harry K. Genant, Chun‐Ying Wu, Cornelis van Kuijk et al. · Journal of Bone and Mineral Research · 1993 · 3.7K citations

, , +13

Global Initiative for Chronic Obstructive Lung Disease. Global strategy for the diagnosis, management, and prevention of chronic obstructive pulmonary disease. GOLD executive summary

Klaus F. Rabe · American Journal of Respiratory and Critical Care Medicine · 2007 · 2.6K citations

, , +15

Characteristics of Physical Activities in Daily Life in Chronic Obstructive Pulmonary Disease

Fábio Pitta, Thierry Troosters, Martijn A. Spruit et al. · American Journal of Respiratory and Critical Care Medicine · 2005 · 1.3K citations

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