ali firat sarp radiology department, ataturk training and research hospital, izmir katip celebi university, izmir, turkey; radiology department, ataturk training and research hospital, izmir katip celebi university, izmir, turkey. fax: +90-2322431530 yeliz pekcevik radiology department, tepecik training and research hospital, izmir, turkey

yasmin davoudi department of radiology, imam reza hospital, school of medicine, mashhad university of medical sciences, mashhad, iran mohsen foroughipour department of neurology, ghaem hospital, school of medicine, mashhad university of medical sciences, mashhad, iran reza torabi department of radiology, school of medicine, mashhad university of medical sciences, mashhad, iran parvaneh layegh department of radiology, imam reza hospital, school of medicine, mashhad university of medical sciences, mashhad, iran nassim matin school of medicine, tehran university of medical sciences, tehran, iran ali shoeibi department of neurology, ghaem hospital, school of medicine, mashhad university of medical sciences, mashhad, iran; department of neurology, ghaem hospital, school of medicine, mashhad university of medical sciences, p. o. box: 9197969764, mashhad, iran. tel: +98-9155137344, fax: +98-5138429828

N G Bellenger M I Burgess S G Ray A Lahiri A J Coats J G Cleland D J Pennell

Vicente Bodí Eva Rumiz Pilar Merlos Julio Nunez Maria P López-Lereu José V Monmeneu Fabián Chaustre David Moratal Isabel Trapero Maria L Blasco Ricardo Oltra Rafael Sanjuán Francisco J Chorro Angel Llàcer Juan Sanchis