Prolonged L-arginine administration but not inducible nitric oxide synthase gene transfer reduces neointima formation after stent injury in rats Pieter Vermeersch, Zengxuan Nong, Hilde Gillijns, Natasha Van Pelt, Olivier Varenne, Eugenio Stabile, Ivan De Scheerder, Desire Collen, Stefan Janssens. Cardiac Unit, University Hospital Gasthuisberg, Leuven, Belgium, Center for Transgene Technology and Gene Therapy, University of Leuven, Leuven, Belgium