title: A comparison of pooled, fresh-frozen, and lyophilized sera as a matrix for enzyme proficiency testing: the experience of the Ontario Laboratory Proficiency Testing Program.
authors.affiliation: Department of Laboratory Medicine, University Campus, London Health Sciences Center, Ontario, Canada.
authors.forename: A R
authors.initials: AR
authors.lastname: Henderson
authors.forename: S
authors.initials: S
authors.lastname: Webb
authors.forename: H
authors.initials: H
authors.lastname: Richardson
authors.forename: D E
authors.initials: DE
authors.lastname: Wood
mesh_terms: D000469:Alkaline Phosphatase / Q000097:blood*; D001774:Blood Chemical Analysis / Q000379:methods* / Q000706:statistics & numerical data; D003402:Creatine Kinase / Q000097:blood*; D003625:Data Collection; D005069:Evaluation Studies as Topic; D005612:Freeze Drying; D005615:Freezing; D006801:Humans; D009864:Ontario; D011786:Quality Control; D015203:Reproducibility of Results
chemical_list: D003402:Creatine Kinase; D000469:Alkaline Phosphatase