WHO Drug Information 2020, vol. 34, 4 [‎‎‎‎‎‎‎‎full issue]‎

The designations employed and the presentation of the material in this publication do not imply the expression of any opinion whatsoever on the part of WHO concerning the legal status of any country, territory, city or area or of its authorities, or concerning the delimitation of its frontiers or boundaries. [...] The responsibility for the interpretation and use of the material lies with the reader. [...] In early March 2020, the IMWP met as a result of the initiation of the Pharmacopeial alert system with the specific goal to share knowledge and experience with regards the role that pharmacopeias can play in assuring the continued supply of quality medicines during the pandemic. [...] In general, the scope of the PTS is to cover the overall performance of a laboratory, and includes the whole process starting with reception and storage of the samples, experimental work, calculations, interpretation and transcription of the data, and reporting of the results and conclusions in the recording sheets provided by study coordinators. [...] The uncertainty of measurement [12] associated with the consensus values was determined by pooling the uncertainty of the mean of the nLab laboratory means: i.e., the standard error: (SLab/sqrt(nLab)), and the uncertainty associated with the homogeneity of the vials (i.e., SRun, the within-Lab standard deviation).