In this task, you will be given a single sentence or a set of sentences. You have to recognize the name of the disorder or disease. Disease is a disorder of structure or function in a human, animal, or plant, especially one that produces specific symptoms or that affects a specific location and is not simply a direct result of physical injury. Although there might be several correct answers, you need to write one of them.

 MATERIALS AND METHODS : We conducted a prospective surveillance study on patients diagnosed with pulmonary hypertension at 12 large referral centers in North America .
pulmonary hypertension

 Hemodynamic and antiadrenergic effects of dronedarone and amiodarone in animals with a healed myocardial infarction .
myocardial infarction

 Bleeding is the primary untoward effect of heparin .

Bleeding