Determined by its ability to chemoattract human blood monocytes using a concentration range of 5.0-20.0 ng/ml, corresponding to a Specific Activity of >5 x 104 IU/mg.
Determined by its ability to chemoattract human blood monocytes using a concentration range of 5.0-20.0 ng/ml, corresponding to a Specific Activity of >5 x 104 IU/mg.