title: Quality control: an application of the cusum.
authors.affiliation: University of Otago Medical School, Dunedin, New Zealand.
authors.forename: S M
authors.initials: SM
authors.lastname: Williams
authors.forename: B R
authors.initials: BR
authors.lastname: Parry
authors.forename: M M
authors.initials: MM
authors.lastname: Schlup
mesh_terms: D002983:Clinical Competence / Q000592:standards*; D004650:Employee Performance Appraisal / Q000379:methods*; D006801:Humans; D008433:Mathematics; D015233:Models, Statistical; D009520:New Zealand; D011785:Quality Assurance, Health Care / Q000592:standards*; D011786:Quality Control; D012015:Reference Standards; D013647:Task Performance and Analysis