Khare, K C1986-05-012009-05-311986-05-012009-05-311986-05-01Khare KC. Long acting preparation of Peritrate. Journal of the Association of Physicians of India. 1986 May; 34(5): 387-8http://imsear.searo.who.int/handle/123456789/90987engDelayed-Action PreparationsHumansPentaerythritol Tetranitrate --metabolismLong acting preparation of Peritrate.Letter