Mechanism of vascular smooth muscle relaxtaion by organic nitrates, nitrites, nitroprusside of vascular smooth muscle relaxation by organic nitrates, nitrites, nitroprusside and nitric oxide: evidence for the involvement of S-nitrosothiols as active intermediates. - Ignarro LJ,null.; Lippton H,null.; Edwards JC,null.; Baricos WH,null.; Hyman AL,null.; Kadowitz PJ,null.; Gruetter CA,null. (J Pharmacol Exp Ther, 1981)