Cascading Stylesheet (CSS) selectors and regular expressions indicating HTML elements and the text to be extracted from them on ClinicalTrials.gov and DRKS.de by clinicaltrials_gov_version() and drks_de_version(), respectively.
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Cascading Stylesheet (CSS) selectors and regular expressions indicating HTML elements and the text to be extracted from them on ClinicalTrials.gov and DRKS.de by clinicaltrials_gov_version() and drks_de_version(), respectively.
创建时间：
2022-07-01
