the interaction of complement with the following two strains of pseudomonas aeruginosa was examined : 144m , a mucoid , serum-sensitive strain bearing short lipopolysaccharide o chains , and 144m-sr , a mucoid , serum-resistant strain bearing long lipopolysaccharide o chains isolated by repeated passage of 144m in increasing concentrations of pooled normal human serum ( pnhs ) .
C0009498
complement
C0229671
serum