title: Letter: Cause of pericardial effusion questioned.
mesh_terms: D000925:Anticoagulants / Q000009:adverse effects; D002305:Cardiac Tamponade / Q000209:etiology; D006801:Humans; D006472:Oral Hemorrhage / Q000150:complications; D010490:Pericardial Effusion / Q000209:etiology*; D014078:Tooth Eruption; D014511:Uremia / Q000150:complications
chemical_list: D000925:Anticoagulants