title: Comparative studies on complement preservation.
mesh_terms: D000818:Animals; D001793:Blood Preservation; D002122:Calcium Chloride; D003168:Complement Fixation Tests; D003165:Complement System Proteins; D005612:Freeze Drying; D006168:Guinea Pigs; D008278:Magnesium Sulfate
chemical_list: D008278:Magnesium Sulfate; D003165:Complement System Proteins; D002122:Calcium Chloride