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Article
Comparison of serum, EDTA plasma and P100 plasma for luminex-based biomarker multiplex assays in patients with chronic obstructive pulmonary disease in the SPIROMICS study
January 08, 2014
Article
Self-reported and accelerometer-measured physical activity by body mass index in US Hispanic/Latino adults: HCHS/SOL
January 01, 2015
Chapter
Mixed models for repeated measures with categorical time effects
April 01, 2014