Malignant carcinoid of the small intestine with metastases to the liver, valvular disease of the right heart (pulmonary stenosis and tricuspid regurgitation without septal defect), peripheral vasomotor symptoms, bronchoconstriction and an unusual type of cyanosis - Thorson,A.; Björk,G.; Bjorkman,G.; Waldenström,J. (Am Heart J, 1954)