This definition appears rarely
See other definitions of C2
Samples in periodicals archive:
The second component of human complement: Its isolation, fragmentation by C1 esterase, and incorporation into C3 convertase (1968)
Original Article. The Molecular Basis for Genetic Deficiency of the Second Component of Human Complement. F. Sessions Cole, M.D., Alexander S. Whitehead, D.Phil...
The second component of human complement: use of glycosidases and glucosylation to distinguish the two forms.
Enhancement of the hemolytic activity of the second component of human complement by oxidation (1967)