TY - RPRT TI - Structural differences between the two human complement C4 isotypes affect the humoral immune response. AU - O Finco AU - S Li AU - M Cuccia AU - F S Rosen AU - M C Carroll PY - 1992 DO - 10.1084/jem.175.2.537 UR - https://pubmed.ncbi.nlm.nih.gov/1732415/ ID - 1732415 ER -