pericardial effusion English English pericardial effusion pericardial effusion English pericardial effusion pericardial effusion English pericardial effusions pericardial effusions English pericardial effusion pericardial effusion pericardial effusion pericardial effusion http://en.wikipedia.org/wiki/Pericardial_effusion pericardial effusion pericardial effusions pericardial effusion pericardial effusion English Pericardial effusion pericardial effusion Pericardial effusion English pericardial effusion pericardial effusion Pericardial effusion Pericardial Effusion pericardial effusion pericardial effusion