c3 was bound to human erythrocytes from autologous plasma or from serum brought to low ionic strength ( mu less than or equal to 0.03 ) and ph between 4.0 and 5.0 , then subsequently incubated with erythrocytes ( 50/1 , v/v ) for 20 min at 0 degree c .
C0032105
plasma
C0229671
serum