title: An analysis of histidine requiring mutants in Pseudomonas aeruginosa.
mesh_terms: D001435:Bacteriophages; D002874:Chromosome Mapping; D005796:Genes; D006639:Histidine / Q000096:biosynthesis*; D009154:Mutation; D011550:Pseudomonas aeruginosa / Q000378:metabolism*
chemical_list: D006639:Histidine