@article{006233414, title = "Purification of pro enzymic and activated human complement c 1s free of complement c 1r effects of calcium and ionic strength on activated complement c 1s", author = "Arlaud, G.J. and Reboul, A. and Meyer, C.M. and Colomb, M.G.", year = "1977", journal = "Biochimica et Biophysica Acta", volume = "485", number = "1", pages = "215-226", issn = "0005-2728", url = "https://eurekamag.com/research/006/233/006233414.php" }