title: An international collaborative study to establish the WHO 1st  international standards for C1-inhibitor, plasma and  concentrate.
authors: Biotherapeutics Group, Haemostasis Section, National Institute for Biological Standards and Control, South Mimms, UK. craig.thelwell@nibsc.hpa.org.uk
authors: C
authors: C
authors: Thelwel
authors: P
authors: P
authors: Rigsby
authors: C
authors: C
authors: Longstaff
mesh_terms: D050718:Complement C1 Inhibitor Protein / Q000378:metabolism / Q000592:standards*; D006801:Humans; D007391:International Cooperation; D010949:Plasma; D014944:World Health Organization
chemical_list: D050718:Complement C1 Inhibitor Protein