title: A simple density gradient method for removing red cells from haemorrhagic serous fluids.
mesh_terms: D002499:Centrifugation, Density Gradient / Q000379:methods*; D003973:Diatrizoate; D004492:Edetic Acid; D004912:Erythrocytes / Q000166:cytology*; D005122:Exudates and Transudates / Q000166:cytology*; D006801:Humans; D007962:Leukocytes; D008264:Macrophages; D010996:Pleural Effusion / Q000166:cytology
chemical_list: D003973:Diatrizoate; D004492:Edetic Acid