A series of skin samples has now been examined for blood-group antigens other than A and B by the method of mixed erythrocyte-epidermal cell agglutination described by these authors.

The 3 methods for measuring CRP and the sensitivity ... and examined for any signs of agglutination. Positive: Presence of any agglutination indicates a concentration of CRP >6 mg/L or >10 mg ...

Both quantitative methods are reported as an amount in mg ... Directly measures the amount of agglutination or precipitation caused by the presence of CRP-antibody complexes.