NOVA Math Publications Statistics and Risk Management Article Martins,G;Alves,M;Dias,J;Santos,R;Neves,BC;Mafra,M;Martins,AP;Ramos,S;Ramos,M;Mexia,J;Quina,M;Rueff,J;Monteiro,C BIOMARKERS 1998 3 6 441-447 Tags : Statistics and Risk Management