title: [Classic nitrate PETN (pentaerythritol tetranitrate). Initial data in pulmonary hypertension: no tolerance].
mesh_terms: D004361:Drug Tolerance; D006801:Humans; D006976:Hypertension, Pulmonary / Q000188:drug therapy*; D010417:Pentaerythritol Tetranitrate / Q000008:administration & dosage / Q000009:adverse effects / Q000627:therapeutic use*; D013997:Time Factors; D014665:Vasodilator Agents / Q000008:administration & dosage / Q000009:adverse effects / Q000627:therapeutic use*
chemical_list: D014665:Vasodilator Agents; D010417:Pentaerythritol Tetranitrate