TY - JOUR AN - 20 AU - Sclafani,LM. AU - Woodruff,JM. AU - Brennan,MF. TI - Extraadrenal retroperitoneal paragangliomas: natural history and response to treatment. JO - Surgery PY - 1990 VL - 108 SP - 1124-1129 M2 - 1124 ER -