title: Phage typing of S. typhi murium in the Netherlands. 1. The phage typing system.
mesh_terms: D001431:Bacteriological Techniques / Q000592:standards; D001434:Bacteriophage Typing; D009426:Netherlands; D012483:Salmonella Phages; D012486:Salmonella typhimurium / Q000145:classification*; D009626:Terminology as Topic