title: Quality control in laboratory investigations on Schistosoma mansoni on St Lucia, West Indies: a staff assessment scheme.
abstract: A method is described for the supervision of technicians engaged in microscopical screening of large numbers of stools for Schistosoma mansoni ova. The scheme presents graphically a regularly updated longitudinal evaluation of both individual and group standards of technical competence.
mesh_terms: D000818:Animals; D005243:Feces / Q000469:parasitology*; D006801:Humans; D013677:Medical Laboratory Science / Q000592:standards*; D008722:Methods; D010270:Parasite Egg Count / Q000379:methods*; D011786:Quality Control; D012550:Schistosoma mansoni; D014900:West Indies