Unusual Cause of'Piriformis Muscle Syndrome'
Arch Neurol 47:1144-1146, Papadopoulos,S.M.,et al, 1990
Clinicopath Conf
Spinal Dural Arteriovenous Fistula, Case 12-1992, NEJM 326:816-824992., , 1992
Painful Vascular Compression Syndrome of the Sciatic Nerve Caused by Gluteal Varicosities
Neurol 61:985-987, Bendszus,M.,et al, 2003