Predictors of asymmetric dimethylarginine levels in patients with rheumatoid arthritis: the role of insulin resistance. - Dimitroulas, T; Sandoo, A; van Zanten, JJJCS Veldhuijzen; Smith, JP; Hodson, J; Metsios, GS; Stavropoulos-Kalinoglou, A; Kitas, GD (Scandinavian Journal of Rheumatology, 2013)