Incluye: 2 referencias bibliográficas

Withdrawal of digoxin after treatment of chronic heart failure. Vesnarinone for congestive heart failure. Aspirin and warfarin after heart - valve replacement. Atherectomy or angioplasty for coronary artery disease. Atherectomy or angioplasty for left anterior descending coronary arteries. Prehospital thrombolysis for suspected myocardial infarction. Prevention of vein - graft occlusion after coronary artery bypass surgery. Fish oil for restenosis after angioplasty: a meta - analysis. Diet supplementation with fish oils and blood pressure reduction: a meta - analysis. Fish oil to reduce blood pressure: a meta - analysis. Zidovudine for asymptomatic human immunodeficiency virus infection. Alpha - interferon for chronic Hepatitis B: a meta - analysis. Azathioprine and prednisolone for active crohn disease. Leucovorin to reduce the side effects of methotrexate in rheumatoid arthritis. Surgery herniated lumbar disc: a review. Nasal ventilation for acute ventilatory failure.

Two - dimensional echocardiography for perivalvular abscesses. An electrocardiographic algorithm for left ventricular hypertrophy.

ST - segment depression and mortality after myocardial infarction. Electrocardiographic prediction of mortality in anterior myocardial infarction. In - hospital cardiopulmonary resuscitation: a meta - analysis.

Early death in men with non - insulin - dependent diabetes. Cephalosporins and nosocomial enterococcus faecalis bacteremia. Cholecystectomy and the risk for colorectal cancer. Cholecystectomy and the risk for colorectal cancer: a meta - analysis.

Exercise and behavioral rehabilitation soon after myocardial infarction.

To determine whether the addition of leucovorin reduces the side effects of low - dose methotrexate with - out reducing its efficacy in patients with rheumatoid arthritis (RA).