Результаты хирургического лечения аневризм брюшной аорты в сочетании с ишемической болезнью сердца

A procedure has been developed for isolating mutants which are defective with respect to nicotinamide adenine dinucleotide (NAD) metabolism. It is based on the well known V-factor requirement of Haemophilus parainfluenzae. This procedure was used to isolate a series of mutants from Escherichia coli.... View More