title: Chemical analysis of a 30-year-old bottle of lyophilized plasma.
abstract: The biochemical constituents of a 30-year-old sealed bottle of lyophilized plasma were analyzed. The results in this communication show that the process of lyophilization and storage has not seemed to cause any great changes in plasma components, including hormones, enzymes, and proteins.
mesh_terms: D001793:Blood Preservation; D005612:Freeze Drying; D010949:Plasma / Q000032:analysis*; D013997:Time Factors