total proteinuria ( biuret method ) and the urinary excretion of specific proteins ( albumin , transferrin , orosomucoid and igg measured by an automated immunoprecipitin reaction and beta 2-microglobulin determined by radioimmunoassay ) have been assessed in four groups of workers : a control group ( n = 88 ) and a group exposed to cadmium ( n = 148 ) , mercury vapour ( n = 63 ) and lead ( n = 25 ) respectively .
C0033684
proteins
C0001924
albumin