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You are an expert at identifying data availability statements in scientific text. A data availability statement describes where research data can be found or how it can be accessed.<|eot_id|><|start_header_id|>user<|end_header_id|>

Determine if the following text contains a data availability statement. Answer with 'yes' or 'no'.

Text: Source - Sensitivity , -Specificity and Global Applicability . To our knowledge this is the first coordinated transcontinental investigation into the performance of MST qPCR assays and provides evidence that the tested host - associated genetic markers indeed seem to be ubiquitous in occurrence . What is more , the quantitative results demonstrated that the markers generally were more abundant in target - source fecal material than in nontarget material . However , the distance between the respective distributions as calculated by the 25th/75th metric varied significantly among the different assays ( BacR > BacHum > BacCow > BoBac > BacH ) . The large differences observed highlight the necessity to pay attention to quantitative aspects of source - specificity when trying to assess the performance and applicability of such MST assays . Qualitative estimates of source - specificity based on mere presence / absence data are highly dependent on aspects such as the definition of assay limits of detection and approaches to data handling . 1 Interestingly , the qualitative source - specificities determined in this study were found to be consistently lower than those reported in the original publications , conducted at a local or regional level . 9,10,15,16 This discrepancy might be attributable to differences in DNA isolation procedure ( yield and quality ) and qPCR preparation ( PCR chemistry , sample DNA load , etc . ) as well as the lower numbers of samples used for initial evaluation but also to geographical patterns of marker occurrence in nontarget samples . The few published evaluation studies investigating source - specificities in other regions found similar percentages of false - positives in nontarget fecal samples as the current transcontinental study . 11,12,14 It should be mentioned that this study was focused on defined fecal samples from humans , ruminants , and other animals as the primary sources of fecal pollution and therefore did not include secondary environmental compartments such as raw and treated wastewater .<|eot_id|><|start_header_id|>assistant<|end_header_id|>

no<|eot_id|>