Graaf, R. de

disorder people happiness depressive personality study graft depression group control symptom health effect medium hyperoxia proliferation surgery oxygen population cytokine survey level disability surgery society ltd journal muscle measure personality traits respondent cent oxygen subthreshold depressive symptoms netherland life-satisfaction condition satisfaction normoxic incidence study vsmc proliferation research scale difference nemesis measurement anxiety table score venou self-esteem validity hyperoxic psychiatry british john wiley depressive symptoms neuroticism health survey month interview trait neointima graaf hyperoxia-induced cytokine production depressive complaints oxidative stress muscle cells signi ficantly muscle cell proliferation result domain mastery correlation exposure kendall tau-b subthreshold stenosi vein grafts self-rated happiness happiness measure life satisfaction ormel