The Danish PET/depression project: clinical symptoms and cerebral blood flow. A regions-of-interest analysis. - Videbech,P.; Ravnkilde,B.; Pedersen,TH.; Hartvig,H.; Egander,A.; Clemmensen,K.; Rasmussen,NA.; Andersen,F.; Gjedde,A.; Rosenberg,R. (Acta Psychiatr Scand, 2002)