title: Improvements in ionisation.
authors.forename: John
authors.initials: J
authors.lastname: Hayes
mesh_terms: D006801:Humans; D007877:Legionnaires' Disease / Q000517:prevention & control; D011839:Radiation, Ionizing; D006113:United Kingdom; D018508:Water Purification / Q000295:instrumentation* / Q000379:methods