TY - RPRT TI - Human monoclonal IgG isotypes differ in complement activating function at the level of C4 as well as C1q. AU - C I Bindon AU - G Hale AU - M Brüggemann AU - H Waldmann PY - 1988 DO - 10.1084/jem.168.1.127 UR - https://pubmed.ncbi.nlm.nih.gov/3260935/ ID - 3260935 ER -