The correlation of pain relief with blood nitrate levels in angina pectoris when treated with pentaerythritol tetranitrate.
D000787:Angina Pectoris / Q000628:therapy*; D009566:Nitrates / Q000097:blood*; D009573:Nitrites / Q000628:therapy*; D009589:Nitrogen Oxides; D059408:Pain Management; D010417:Pentaerythritol Tetranitrate
D009566:Nitrates; D009573:Nitrites; D009589:Nitrogen Oxides; D010417:Pentaerythritol Tetranitrate
ANGINA PECTORIS/therapy; NITRATES/blood; NITRITES/therapy