TY - RPRT TI - Quantitative complement-fixation. II. Standardization of the unit of complement. AU - H H COHEN AU - B VAN LINGE AU - J H DE BOER AU - H POLMAN PY - 1953 DO - 10.1007/bf02594847 UR - https://pubmed.ncbi.nlm.nih.gov/13080985/ ID - 13080985 ER -