1. Comparative analysis of calculating sigma metrics by a trueness verification proficiency testing‐based approach and an internal quality control data inter‐laboratory comparison‐based approach. Issue 9 (6th August 2019) Authors: Li, Runqing; Wang, Tengjiao; Gong, Lijun; Peng, Peng; Yang, Song; Zhao, Haibin; Xiong, Pan Journal: Journal of clinical laboratory analysis Issue: Volume 33:Issue 9(2019) Page Start: n/a Record Type: Journal Article View Content: Available online (eLD content is only available in our Reading Rooms) ↗