title: Commutability of proficiency testing (PT): status of the matrix-related bias in general clinical chemistry.
authors.forename: So Young
authors.initials: SY
authors.lastname: Kim
authors.forename: Sail
authors.initials: S
authors.lastname: Chun
authors.forename: Woochang
authors.initials: W
authors.lastname: Lee
authors.forename: Won-Ki
authors.initials: WK
authors.lastname: Min
mesh_terms: D002624:Chemistry, Clinical; D059021:Laboratory Proficiency Testing