Figure 1From: The use of microbead-based spoligotyping for Mycobacterium tuberculosis complex to evaluate the quality of the conventional method: Providing guidelines for Quality Assurance when working on membranes Relative quality of the classical membrane-based spoligotyping by center. One hundred percent (100% performance) quality is inferred when obtaining complete (identical) concordance, i.e. 43/43 spacers, with the high-throughput based spoligotyping for every isolate. The centers were numbered according to their spoligotyping quality and these numbers are shown between parentheses. DNA extraction procedure is also mentioned for each center.Back to article page