Innovative Research's Pooled Complement Human Serum was recently used in the following study:
...Biological samples were thawed on ice immediately prior to the assay. Complement preserved normal human serum was obtained from Innovative Research (Novi, MI, USA), stored at -80C until use, and used as supplied.
Robust substrate profiling method reveals striking differences in specificities of serum and lung fluid proteases
DS Watson, K Jambunathan, DS Askew... - ..., 2011 - biotechniques.com...Biological samples were thawed on ice immediately prior to the assay. Complement preserved normal human serum was obtained from Innovative Research (Novi, MI, USA), stored at -80C until use, and used as supplied.