The hole story. Fine-pore membranes remove viruses from biological drugs.
Erickson
D
D
D001685:Biological Factors / Q000302:isolation & purification*; D001688:Biological Products / Q000302:isolation & purification*; D001709:Biotechnology; D004340:Drug Contamination; D008566:Membranes; D008851:Micropore Filters; D014780:Viruses / Q000302:isolation & purification*
D001685:Biological Factors; D001688:Biological Products