title: My 30-year-old son recently suffered severe chest pain, causing him to go to the emergency room.  He was diagnosed with pericarditis.  What is this, and what causes the symptoms?
mesh_terms: D000328:Adult; D000894:Anti-Inflammatory Agents, Non-Steroidal / Q000627:therapeutic use; D002637:Chest Pain / Q000209:etiology*; D006801:Humans; D008297:Male; D010493:Pericarditis / Q000150:complications* / Q000188:drug therapy / Q000503:physiopathology*
chemical_list: D000894:Anti-Inflammatory Agents, Non-Steroidal