[Effectiveness of various forms of therapy in chronic cardiovascular diseases--a vector analysis of the transition probabilities of degrees of severity].
Hempel WE, Gerst H, Hempel B, Richter K, Cobet H, Steinbach W. [Effectiveness of various forms of therapy in chronic cardiovascular diseases--a vector analysis of the transition probabilities of degrees of severity]. Z Gesamte Inn Med. 1988 Nov 01; 43(21):609-13.