<|begin_of_text|><|start_header_id|>system<|end_header_id|>

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: This study was conducted as a distributed database network analysis.  To protect patient privacy, all patient-level data were maintained securely behind institutional firewalls.  Analysis code was downloaded and executed by each participating data partner, which generated only aggregate summary statistics (cohort counts, model coefficients) which were then centralized and synthesized in preparation of this manuscript.  All aggregate summary statistics produced have been made publicly available at: https://data.ohdsi.org/Covid19EstimationHydroxychloroquine/.   https://data.ohdsi.org/Covid19EstimationHydroxychloroquine/   https://github.com/ohdsi-studies/Covid19EstimationHydroxychloroquine   https://github.com/ohdsi-studies/Covid19DrugRepurposing<|eot_id|><|start_header_id|>assistant<|end_header_id|>

yes<|eot_id|>