B. J. Burmeister

Limitations of proficiency testing under CLIA '67.

S. Ehrmeyer, R. Laessig, B. Lanphear, 1992, Clinical chemistry.

Review of actual proficiency-testing performance under CLIA '67 (March 14, 1990) rules: perspective from the first year's data.

S. Ehrmeyer, R. Laessig, B. Lanphear, 1992, Clinical chemistry.