Cohen MG, Kelly RV, Kong DF, Menon V, Shah M, Ferreira J, Pieper KS, Criger D, Poggio R, Ohman EM, Gore J, Califf RM, Granger CB. Pulmonary artery catheterization in acute coronary syndromes: insights from the GUSTO IIb and GUSTO III trials. Am J Med. 2005 May; 118(5):482-8.