L-NG-nitroarginine (L-NOARG) inhibits endothelium dependent vasodilatation in the rabbit aorta and perfused rat mesentery. Br. J - Moore,P.K.; Al-Swateh,O.A.; Chong,N.WS.; Evans,R.; Mirza-Zadeh,S.; Gibson,A. (Pharmacol., 1989)