TY - RPRT TI - C1r, subunit of the first complement component: purification, properties, and assay based on its linking role. AU - M M De Bracco AU - R M Stroud PY - 1971 DO - 10.1172/jci106555 UR - https://pubmed.ncbi.nlm.nih.gov/4100685/ ID - 4100685 ER -