Lipoprotein (a) is related to the extent of lesions in the coronary vasculature and to unstable coronary syndromes - Zampoulakis, John D; Kyriakousi, Areti A; Poralis, Kostas A; Karaminas, Naoum T; Palermos, Ioannis D; Chimonas, Elias T; Cokkinos, Dennis V (Clinical cardiology, 2000)