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Correspondence
Role of nitric oxide in vasovagal syncope. A puzzle solved but there could be another piece
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To the Editor
Stewart et al 1 reported a very ingenious study that finally demonstrated the previously controversial role of nitric oxide (NO) in vasovagal syncope (VVS). They used a different approach that certainly explains that they have obtained positive findings. They measured the effect on NO through an inhibitor of …
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Competing interests None declared.
Provenance and peer review Not commissioned; internally peer reviewed.