@misc{indiciae97745cd4e881, title = {Human complement C3b inactivator: isolation, characterization, and demonstration of an absolute requirement for the serum protein beta1H for cleavage of C3b and C4b in solution.}, author = {M K Pangburn and R D Schreiber and H J Müller-Eberhard}, year = {1977}, doi = {10.1084/jem.146.1.257}, url = {https://pubmed.ncbi.nlm.nih.gov/301546/}, note = {Source identifier: 301546} }