http://www.nlm.nih.gov/medlineplus/ency/article/003872.htm MedlinePlus/NIH http://www.nlm.nih.gov/medlineplus/ency/article/003872.htm Pericardiocentesis Pericardiocentesis Pericardiocentesis MedlinePlus/NIH MedlinePlus/NIH Pericardiocentesis MedlinePlus/NIH Full article >>> Pericardiocentesis