Citrulline does not enhance blood flow, microvascular circulation, or myofibrillar protein synthesis in elderly men at rest or following exercise
AJP Endocrinology and Metabolism (2014) - Comments
pubmed: 24824653  doi: 10.1152/ajpendo.00096.2014  issn: 1522-1555  issn: 0193-1849 

Tyler A. Churchward-Venne, Lisa M. Cotie, Maureen J. MacDonald, Cameron J. Mitchell, Todd Prior, Steven K. Baker, Stuart M. Phillips