TY - GEN AU - Lacher,D A TI - Evaluation of a sum of squared Z scores quality control rule SN - 0009-8981 PY - 1987///0626 KW - Chemistry, Clinical KW - standards KW - Mathematics KW - Quality Control N1 - Publication Type: Letter UR - https://doi.org/10.1016/0009-8981(87)90112-4 ER -