Almén T, Bergquist D, Frennby B, Hellsten S, Lilja B, Nyman U, Sterner G, Törnquist C
Department of Diagnostic Radiology, Malmö General Hospital, Sweden.
Invest Radiol. 1991 Nov;26 Suppl 1:S72-4; discussion S88-91. doi: 10.1097/00004424-199111001-00024.