Oral vitamin C and endothelial function in smokers: short-term improvement, but no sustained beneficial effect
Olli T. Raitakari, MD, PhD* ,
Mark R. Adams, MB, BS, PhD, FRACP*,
Robyn J. McCredie, BSc*,
Kaye A. Griffiths, DMU*,
Roland Stocker, PhD and
David S. Celermajer, MB, BS, PhD, FRACP*
* Department of Cardiology, Royal Prince Alfred Hospital, Sydney, Australia
Heart Research Institute, Sydney, Australia
Department of Clinical Physiology, University of Turku, Turku, Finland

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Figure 1 Values for FMD (mean ± SEM) at each visit, which improved significantly 2 h after treatment with vitamin C, but no sustained treatment effect was seen at eight weeks.
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